Abu Saeed Khudri reported,

The Messenger of Allah ﷺ used to like holding palm-branch stalks in his hand. One day he entered the mosque carrying one of them, and he noticed traces of phlegm on the qiblah wall of the mosque. He scraped them off with the stalk until the wall was clean. Then he turned to the people, visibly angered, and said, "Would any of you like it if a man came up to him and spat in his face? When one of you stands to pray, he is facing his Lord , and an angel is on his right. So let him not spit in front of him, nor to his right. Let him spit beneath his left foot, or to his left. And if it comes upon him suddenly, let him do this," and he folded part of his garment over another part.Yahya then spat into his own garment and rubbed it in.

حدثنا يحيى عن ابن عجلان قال حدثني عياض بن عبد الله

عن أبي سعيد الخدري

أن رسول الله ﷺ كان يعجبه العراجين أن يمسكها بيده فدخل المسجد ذات يوم وفي يده واحد منها فرأى نخامات في قبلة المسجد فحتهن به حتى أنقاهن ثم أقبل على الناس مغضبا فقال أيحب أحدكم أن يستقبله رجل فيبصق في وجهه إن أحدكم إذا قام إلى الصلاة فإنما يستقبل ربه عز وجل والملك عن يمينه فلا يبصق بين يديه ولا عن يمينه وليبصق تحت قدمه اليسرى أو عن يساره فإن عجلت به بادرة فليقل هكذا ورد بعضه على بعض وتفل يحيى في ثوبه ودلكه