Musannaf Ibn Abi Shaybah 34296 — The virtues of Ali bin Abi Talib

Isma'il said that Imam al-Sha'bi (may Allah have mercy on him) said: This verse of the Qur'an, "Do you make the giving of water to the pilgrims and the maintenance of the Sacred Mosque" [At-Tawbah: 19], was revealed concerning Sayyiduna Ali (may Allah be pleased with him) and Sayyiduna Abbas (may Allah be pleased with him).