قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : " إِذَا قَامَ أَحَدُكُمْ إِلَى الصَّلاةِ، فَلا يَبْصُقْ أَمَامَهُ، فَإِنَّهُ يُنَاجِي اللَّهَ مَا دَامَ فِي مُصَلاهُ، وَلا عَنْ يَمِينِهِ، فَإِنَّ عَنْ يَمِينِهِ مَلَكًا، وَلَكِنْ لِيَبْصُقْ عَنْ شِمَالِهِ أَوْ تَحْتَ رِجْلِهِ، فَيَدْفِنُهُ "
And the Messenger of Allah, peace and blessings be upon him, said: "When any of you stands for prayer, he should not spit in front of him, because as long as he is in his place of prayer, he is engaged in intimate discourse with Allah, the Mighty and Majestic. And likewise, he should not spit to his right side, because there is an angel on his right. Yes, (if he wishes to spit) he should spit to his left side or under his foot, then cover it."