Musannaf Ibn Abi Shaybah 7650 — Those who disliked spitting towards

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) saw spittle on the qiblah side of the mosque, so he turned to the people and said: "What is wrong with people who stand facing their Lord and then spit in front of Him? Would any of you like someone to face him and spit in his face? If one must spit, let him spit to his left or under his foot. If he cannot find (a place), let him spit into his garment." Having said this, the narrator Isma'il showed us by spitting into his garment and rubbing it.