Jami` at-Tirmidhi 3546
ʻAli bin Abi Talib narrated that the Messenger of Allah (ﷺ) said:
“The stingy person is the one before whom I am mentioned, and he does not send Salat upon me.”
Grade: Hasan
Also in Ahmad (1736), and an-Nasa’i in “Al-Sunan Al-Kubra” (8100) and Ibn Hibban 909