Narrated AbuSahlah as-Sa'ib ibn Khallad:

A man led the people in prayer. He spat towards qiblah while the Messenger of Allah ﷺ was looking at him. The Messenger of Allah said to the people when he finished his prayer: He should not lead you in prayer (henceforth).

Thenceforth he intended to lead them in prayer, but they forbade him and informed him of the prohibition of the Messenger of Allah ﷺ. He mentioned it to the Messenger of Allah ﷺ who said to him: Yes.

The narrator said: I think he (the Prophet) said: You did harm to Allah and His Apostle.

حَدَّثَنَا أَحْمَدُ بْنُ صَالِحٍ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ، أَخْبَرَنِي عَمْرٌو، عَنْ بَكْرِ بْنِ سَوَادَةَ الْجُذَامِيِّ، عَنْ صَالِحِ بْنِ خَيْوَانَ، عَنْ أَبِي سَهْلَةَ السَّائِبِ بْنِ خَلاَّدٍ، - قَالَ أَحْمَدُ - مِنْ أَصْحَابِ النَّبِيِّ ﷺ أَنَّ رَجُلاً أَمَّ قَوْمًا فَبَصَقَ فِي الْقِبْلَةِ وَرَسُولُ اللَّهِ ﷺ يَنْظُرُ فَقَالَ رَسُولُ اللَّهِ ﷺ حِينَ فَرَغَ " لاَ يُصَلِّي لَكُمْ " . فَأَرَادَ بَعْدَ ذَلِكَ أَنْ يُصَلِّيَ لَهُمْ فَمَنَعُوهُ وَأَخْبَرُوهُ بِقَوْلِ رَسُولِ اللَّهِ ﷺ فَذَكَرَ ذَلِكَ لِرَسُولِ اللَّهِ ﷺ فَقَالَ " نَعَمْ " . وَحَسِبْتُ أَنَّهُ قَالَ " إِنَّكَ آذَيْتَ اللَّهَ وَرَسُولَهُ " .