Al-Kāfi - The Book of Zakat

Chapter: Undesirability of Turning Away One Asking for Help َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدٍ عَنِ ابْنِ أَبِي عُ٠َيْرٍ عَنْ هِشَا٠ٍ قَالَ قَالَ أَبُو جَعْفَرٍ (عَلَيْهِ السَّلاَ٠) أَعْطِ السَّائِلَ وَلَوْ كَانَ عَلَى ظَهْرِ فَرَسٍ. 2.

Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ibn Abi ‘Umayr from Hisham ibn Salim from Muhammad ibn Muslim who has said the following: “Abu Ja’far (a.s.), has said, ’You must give charity to one asking for help even if he is riding a horse.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (6/142))