Authentic
hadith of Sahih al-Bukhari
Sahih al-Bukhari 2239b
.
حَدَّثَنَا مُحَمَّدٌ، أَخْبَرَنَا إِسْمَاعِيلُ، عَنِ ابْنِ أَبِي نَجِيحٍ، بِهَذَا " فِي كَيْلٍ مَعْلُومٍ وَوَزْنٍ مَعْلُومٍ "
Narrated Ibn Abi Najih:
as above, mentioning only specific measure.
Reported by Al-Bukhari (No. 2239b).