Arabic (Original)
حَدَّثَنَا يَحْيَى عَنْ عُبَيْدِ اللَّهِ أَخْبَرَنَا نَافِعٌ عَنِ ابْنِ عُمَرَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَأَى نُخَامَةً فِي قِبْلَةِ الْمَسْجِدِ فَحَتَّهَا ثُمَّ قَالَ إِذَا كَانَ أَحَدُكُمْ فِي الصَّلَاةِ فَلَا يَتَنَخَّمْ فَإِنَّ اللَّهَ تَعَالَى قِبَلَ وَجْهِ أَحَدِكُمْ فِي الصَّلَاةِ.
English Translation
Yahya told us, from Ubaydullah: Nafi' informed us, from Ibn Umar, that the Messenger of Allah, peace and blessings be upon him, saw phlegm on the wall facing the qiblah in the mosque, so he scraped it off, then said, "When one of you is in prayer, let him not spit forward, for Allah, the Exalted, is before the face of one of you during prayer."