وَعَنِ اِبْنِ عَبَّاسٍ رَضِيَ اَللَّهُ عَنْهُمَا
قَالَ: «لَا رَضَاعَ إِلَّا فِي اَلْحَوْلَيْنِ»
Suckling applies only (to infants) during the first two years (of their life). [Reported by ad-Daraqutni and Ibn Adi as Marfu (a saying of the Prophet (sallallahu alayhi wa sallam)) and Mawquf (a saying of a Companion). However, they both held that the stronger view is that it is Mawquf (i.e. saying if Ibn Abbas).