The Sufficient (Vol 5) · Hadith 1664 (#Ḥadīth #3)
Chapter 87 | Breastfeeding
3- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ عَنْ دَاوُدَ بْنِ سِرْحَانَ عَنْ أَبِي عَبْدِ اللهِ قَالَ يَحْرُمُ مِنَ الرَّضَاعِ مَا يَحْرُمُ مِنَ النَّسَبِ.
3. A number of our people have narrated from Sahl ibn Ziyad and Ahmad ibn Muhammad from ibn abu Nasr from Dawud ibn Sarhan who has said the following: “Abu ‘Abd Allah , has said, ‘Because of breastfeeding, whoever is unlawful for marriage because of being a relative (blood relationship), becomes unlawful for marriage.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).