Except [when adding], "If Allāh wills." And remember your Lord when you forget [it] and say, "Perhaps my Lord will guide me to what is nearer than this to right conduct."
Saying "If Allah wills" when determining to do Something in the Future
Here Allah, may He be glorified, shows His Messenger the correct etiquette when determining to do something in the future; this should always be referred to the will of Allah, the Knower of the Unseen, Who knows what was and what is yet to be and what is not to be, and how it will be if it is to be. It was recorded in the Two Sahihs that Abu Hurayrah said that the Messenger of Allah ﷺ said:
Saying 'Insha'Allah' on doing something in the future
The background of the revelation of the first two verses has been reported in Lubab from Sayyidna ` Abdullah ibn ` Abbas ؓ in the following manner. When the people of Makkah acting as coached by the Jews, asked the Holy Prophet ﷺ about the story of Ashab al-Kahf etc., he promised to answer that next day without having said Insha'Allah. The least shortcoming issuing forth from the close ones brings some or the other notice of caution. Therefore, no revelation came for the next fifteen days. Naturally, the Holy Prophet ﷺ was grieved and the Mushriks of Makkah had their opportunity to laugh and ridicule. After this interval of fifteen days, when the answer to the questions asked was revealed, these two verses were revealed along with it as a measure of guidance. They told him that, should he need to say something about what he was going to do the next day, he should invariably affirm it by saying Insha'Allah, for everything depends on the intention and will of Allah Ta` ala. These two verses, it will be noted, have been introduced at the end of the story of the People of Kahf.
Ruling
Firstly, these two verses (23, 24) tell us that saying Insha'Allah in the given situation is mustahabb (recommended). Secondly, they tell us that, should this part of the statement be left unsaid inadvertently, then, one may say it at the time one remembers. This injunction relates to the particular matter for which these verses have been revealed. It means that the purpose is simply to say this word to invoke Divine blessing and to confess to one's servitude and not to make the statement contingent or conditional. Therefore, it does not follow from here that one would do the same in buying and selling transactions and contracts where conditions are imposed and on this rests the contract between parties. Is it possible to impose a condition whenever one remembers later in case one had for-gotten to include the condition at the time of signing the original contract? The difference of some jurists exists in this issue details of which appear in books of Fiqh.
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 23–25
The Quraysh of Makkah sent Nadar ibn Harith and ‘Uqbah ibn Mu‘it to Madinah to meet the Jewish scholars and ask for information about the Prophet Muhammad, because the Jews had knowledge about prophets. The Jews advised these emissaries to ask the Prophet Muhammad about three things, adding that if he could give information about these things, then he was the Prophet; otherwise he was merely a glib talker. Of these questions, one was about the young ‘Men of the Cave’, the second related to ‘Dhul Qarnayn’ and the third was about the spirit. Before the age of the press the common people did not know about the ‘Men of the Cave.’ This story was recorded in certain Syrian manuscripts, a fact known only to particular scholars. When this question was put to the Prophet Muhammad, he said that he would give the required information the next day, in the hope that Gabriel would appear the next day and give him the necessary information, which he would then pass on to the questioners. But, Gabriel’s arrival was delayed. He took fifteen days to bring the chapter entitled ‘The Cave’ (al-Kahf). Due to this delay in revelation, The Prophet Muhammad’s Makkan antagonists had a good opportunity to malign his name on this issue. God said, ‘On the pretext of a small, ordinary incident, you are trying to make people doubtful about the truthfulness of a person whose truthfulness is going to be vouchsafed by far better and much more convincing arguments.’ (Tafsir al-Mazhari, vol. 6, p. 27 ). Now that so many arguments have accumulated to substantiate the truthfulness of the prophethood of the Prophet Muhammad, no sensible person could deny it. Today, his prophethood is a well established fact and not merely a claim.
![Surah Al-Kahf 18:24 in Arabic with its translation: “Except [when adding], "If Allāh wills." And remember your Lord when you forget [it] and say, "Perhaps my Lord…”](/surah/al-kahf/24/image.jpg)