حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ، عَنِ الْقَاسِمِ بْنِ مِهْرَانَ، عَنْ أَبِي رَافِعٍ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ رَأَى نُخَامَةً فِي قِبْلَةِ الْمَسْجِدِ فَأَقْبَلَ عَلَى النَّاسِ فَقَالَ ‏"‏ مَا بَالُ أَحَدِكُمْ يَقُومُ مُسْتَقْبِلَهُ - يَعْنِي رَبَّهُ - فَيَتَنَخَّعُ أَمَامَهُ أَيُحِبُّ أَحَدُكُمْ أَنْ يُسْتَقْبَلَ فَيُتَنَخَّعَ فِي وَجْهِهِ إِذَا بَزَقَ أَحَدُكُمْ فَلْيَبْزُقَنَّ عَنْ شِمَالِهِ أَوْ لِيَقُلْ هَكَذَا فِي ثَوْبِهِ ‏"‏ ‏.‏ ثُمَّ أَرَانِي إِسْمَاعِيلُ يَبْزُقُ فِي ثَوْبِهِ ثُمَّ يَدْلُكُهُ ‏.‏

It wasnarrated from Abu Hurairah that the Messenger of Allah (PBUH)saw somesputum in the direction of the Qiblah of the mosque. Heturned to thepeople and said: “What is wrong with one of you that hestandsfacing Him (meaning his Lord) and spits in front of Him? Wouldanyonelike to be faced by someone who spits in his face? If anyone ofyouneeds to spit, then let him spit to his left, or let him do likethisin his garment.” Translation Not Available

Book Ref: Sunan Ibn Majah Book 5 Hadith 1022
Web Ref:  Sunan Ibn Majah Vol 1 Book 5 Hadith 1022