"Indeed the supplication stops between the heavens and the earth. Nothing of it is raised up until you send Salat upon your Prophet."
Jami` at-Tirmidhi Book 3, Hadith 34
← Previous Hadith Allah's Messenger said: "Whoever sends Salat upon me, Allah sends Salat upon him ten times."

Jami` at-Tirmidhi Book 3, Hadith 33 Next Hadith → "No one should sell in our markets except one who has understanding in the religion."

Jami` at-Tirmidhi Book 3, Hadith 35