صَحِيحُ مُسْلِمٍ
Sahih Muslim 1654 f
The Book of Oaths
Saying: "If Allah wills" when swearing oaths and at other times
وَحَدَّثَنِيهِ سُوَيْدُ بْنُ سَعِيدٍ، حَدَّثَنَا حَفْصُ بْنُ مَيْسَرَةَ، عَنْ مُوسَى بْنِ عُقْبَةَ، عَنْ أَبِي، الزِّنَادِ بِهَذَا الإِسْنَادِ مِثْلَهُ . غَيْرَ أَنَّهُ قَالَ كُلُّهَا تَحْمِلُ غُلاَمًا يُجَاهِدُ فِي سَبِيلِ اللَّهِ .
This hadith has been narrated on the authority of Abu Zinad with the same chain of transmitters with a variation of (these words): " Every one of them giving birth to a child, who would have fought in the cause of Allah."
Sahih Muslim, 1654 fSahihصحيح