Authentic
graded by Salim al-Hilali
Muwatta Malik 1285
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، أَنَّهُ قَالَ سَمِعْتُ سَعِيدَ بْنَ الْمُسَيَّبِ، يَقُولُ لاَ رَضَاعَةَ إِلاَّ مَا كَانَ فِي الْمَهْدِ وَإِلاَّ مَا أَنْبَتَ اللَّحْمَ وَالدَّمَ .
Yahya related to me from Malik that Yahya ibn Said said that he heard Said ibn al-Musayyab say, "Suckling is only while the child is in the cradle. If not, it does not cause flesh and blood relations."
Reported by Malik (No. 1285, 1289).