The Book of Zakat
وَحَدَّثَنَاهُ ابْنُ أَبِي عُمَرَ، حَدَّثَنَا فُضَيْلُ بْنُ عِيَاضٍ، عَنْ مَنْصُورٍ، بِهَذَا الإِسْنَادِ وَقَالَ " مِنْ طَعَامِ زَوْجِهَا " .This hadith has been narrated by Mansur with the same chain of transmitters (with this alteration of words):" from the food of her husband
From Sahih Muslim, whose reports the scholars accept as authentic.