حَدَّثَنَا هَنَّادُ بْنُ السَّرِيِّ، عَنْ أَبِي الأَحْوَصِ، عَنْ مَنْصُورٍ، عَنْ رِبْعِيٍّ، عَنْ طَارِقِ بْنِ عَبْدِ اللَّهِ الْمُحَارِبِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ إِذَا قَامَ الرَّجُلُ إِلَى الصَّلاَةِ - أَوْ إِذَا صَلَّى أَحَدُكُمْ فَلاَ يَبْزُقْ أَمَامَهُ وَلاَ عَنْ يَمِينِهِ وَلَكِنْ عَنْ تِلْقَاءِ يَسَارِهِ إِنْ كَانَ فَارِغًا أَوْ تَحْتَ قَدَمِهِ الْيُسْرَى ثُمَّ لْيَقُلْ بِهِ ‏"‏ ‏.‏

Narrated Abdullah al-Muharibi: The Messenger of Allah (PBUH) said: When a man stands with the intention of saying prayer, or if any of you says prayer, he should not spit before him, nor at his right side; but he should do so at his left side, if there is a place for it; or he should spit under his left foot and then rub it off. Translation Not Available

Book Ref: Sunan Abi Dawud Book 2 Hadith 478
Web Ref:  Sunan Abi Dawud Book 2 Hadith 478