قَدِ افْتَرَيْنَا عَلَى اللَّهِ كَذِبًا إِنْ عُدْنَا فِي مِلَّتِكُم بَعْدَ إِذْ نَجَّانَا اللَّهُ مِنْهَا ۚ وَمَا يَكُونُ لَنَا أَن نَّعُودَ فِيهَا إِلَّا أَن يَشَاءَ اللَّهُ رَبُّنَا ۚ وَسِعَ رَبُّنَا كُلَّ شَيْءٍ عِلْمًا ۚ عَلَى اللَّهِ تَوَكَّلْنَا ۚ رَبَّنَا افْتَحْ بَيْنَنَا وَبَيْنَ قَوْمِنَا بِالْحَقِّ وَأَنتَ خَيْرُ الْفَاتِحِينَ (89)
(7:89) If we return to your faith after Allah has delivered us from it we would be fabricating a lie against Allah. nor can we return to it again unless it be by, the will of Allah, our Lord. *73 Our Lord has knowledge of all things, and in Allah we put our trust. Our Lord! Judge rightly between us and our people, for You are the best of those who judge.'
*73). This phrase signifies substantively what is meant by the commonly used Islamic formula In-sha' Allah ('If Allah so wills'). Its meaning is evident from al-Kahf 18: 23-4, in which the believers are directed not to make definitive statements about what they will do without making such actions contingent on God's will. This is understandable since a believer firmly believes in God's power and is ever conscious that his destiny is inalienably tied to God's will. It is impossible for such a person to make foolish statements about what he will do and what he will not do. He is bound to make it clear that he will accomplish what he intends only, if 'God so wills'.