Description
'Umari scholar
Muhammad al-Tahir Ibn 'Ashūr (d. 1284 AH) states:
A ishah, the Mother of the Believers, whenever she wished for someone to enter upon her from behind the veil, would breastfeed him. She interpreted this based on the Prophet's permission to Sahla, the wife of Abū Hudhayfah. However, the Mothers of the Believers did not agree with her on this view and refused to allow anyone to enter upon them in such a manner. This opinion was also held by al-Layth ibn Sa'd, who ruled in favor of the effectiveness of Rida' al-Kabir (adult breastfeeding). However, Abū Mūsā al-Ash' arī later retracted his fatwa after initially endorsing it.
Al-Tahrir wa al-Tanwir, vol. 4, p. 297