The Prophet ﷺ said, "When a person is in prayer, he is in private converse with his Lord, so he must not spit in front of himself, nor to his right, but rather to his left, under his left foot."
حدثنا محمد حدثنا غندر حدثنا شعبة قال سمعت قتادة
عن النبي ﷺ قال إذا كان في الصلاة فإنه يناجي ربه فلا يبزقن بين يديه ولا عن يمينه ولكن عن شماله تحت قدمه اليسرى