“The Prophet (ﷺ) said: ‘When you perform prayer, do not spit in front of you or to your right, but spit to your left or beneath your feet.’”
Sunan Ibn Majah Book 5, Hadith 219
← Previous Hadith “We were with the Messenger of Allah (ﷺ) on a journey, and the sky was overcast so it was difficult for us to determine the Qiblah. So we performed prayer, and we marked the location.* Later, when the sun reappeared, we realized that we had prayed facing a direction other than the Qiblah. We mentioned that to the Prophet (ﷺ), then the Words were revealed: ‘So wherever you turn there is the Face of Allah.’”

Sunan Ibn Majah Book 5, Hadith 218 Next Hadith → “What is wrong with one of you that he stands facing Him (meaning his Lord) and spits in front of Him? Would anyone like to be faced by someone who spits in his face? If anyone of you needs to spit, then let him spit to his left, or let him do like this in his garment.”

Then Ismail (Abu Bakr bin Abu Shuaibah) showed me how he spat in his garment then rubbed it.

Sunan Ibn Majah Book 5, Hadith 220