Busr bin Sa'id says that once Zaid bin Khalid (may Allah be pleased with him) sent me to Abu Juhaim (may Allah be pleased with him) to ask about the hadith he had heard regarding a person passing in front of someone who is praying. He said: I heard the Prophet (peace and blessings of Allah be upon him) say that it is better for a person to stand and wait for forty ________ than to pass in front of someone who is praying. I do not remember whether the Prophet (peace and blessings of Allah be upon him) said days, months, or years.
Umair, who was the freed slave of Hazrat Ibn Abbas (may Allah be pleased with him), says that I and Abdullah bin Yasar, who was the freed slave of Hazrat Maymunah (may Allah be pleased with her), went to Hazrat Abu Juham bin Harith (may Allah be pleased with him). He said that once the Prophet (peace and blessings be upon him) was coming from the direction of Bir Jamal when he met a man on the way. The man greeted him with salam, but the Prophet (peace and blessings be upon him) did not reply. Instead, he turned towards a wall, performed tayammum on his face and hands with it, and then replied to his salam.
Hadith Referenceمسند احمد / مسند الشاميين / 17541
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد ضعيف من أجل ابن لهيعة، وقد توبع
It is narrated from Hazrat Abu Juhaim (may Allah be pleased with him) that once there was a disagreement between two men regarding a verse of the Noble Qur'an. One said, "I have recited it in this way from the Prophet (peace and blessings be upon him)," and the other also said, "I have received it in this way from the Prophet (peace and blessings be upon him)." Eventually, they asked the Prophet (peace and blessings be upon him), and he said, "The Noble Qur'an can be recited on seven letters, so do not dispute about the Noble Qur'an, for disputing about the Qur'an is disbelief."