your hands.’ Yazīd thereupon raised his hands and supplicated, and the people supplicated as well until rain fell.
None of the Companions ever went to the grave of the Prophet ﷺ—or to any other grave—to seek rain there or through it. What the scholars recommended was simply to offer salutations to the Prophet ﷺ, based on the ḥadīth recorded in Sunan Abū Dāwūd from Abū Hurayrah, in which the Prophet ﷺ said:
“No one greets me without Allah returning my soul to me so that I may return his greeting.”
This is corroborated by the report in al-Nasāʾī and elsewhere, where he ﷺ said:
“Allah has appointed angels at my grave who convey to me the greetings of my ummah.”
Abū Dāwūd and others also relate that he ﷺ said:
“Increase your prayers upon me on the night before Friday and on Friday itself, for your prayers are presented to me.”
They asked, “O Messenger of Allah, how will our prayers be presented to you when you have decayed?”—meaning when your body has decomposed. He replied:
“Allah has forbidden the earth to consume the bodies of the prophets.”
Thus invoking blessings upon him—may my father and mother be ransomed for him—and sending him salutations are among the acts commanded by Allah and His Messenger. It is authentically reported that he said:
“Whoever sends blessings upon me once, Allah will bless him ten times in return.”