A number of the Salaf said: There were people who used to call upon Ezra, the Messiah, and the angels, so Allah revealed this verse, stating that those who are being invoked (1) themselves seek closeness to Allah, hope for His mercy, and fear His punishment.
It is authentically reported in the Ṣaḥīḥ that Abū Hurayrah said, “O Messenger of Allah, who is the happiest of people with your intercession (2) on the Day of Resurrection?” He replied, “O Abū Hurayrah, I was sure no one would ask me about this ḥadīth before you, because I have seen your eagerness for ḥadīth. The happiest of people with my intercession on the Day of Resurrection is the one who says, ‘There is no deity but Allah,’ seeking thereby the Face of Allah.” (3)
Accordingly, the more complete (4) a person’s sincerity (5) toward Allah, the more deserving he is of intercession. But whoever attaches his heart to any creature—hoping in him and fearing him—will be among the farthest from intercession. Intercession among created beings takes place when the intercessor helps the one for whom he intercedes without the permission of the one before whom the intercession is made; he intercedes either because that person needs him or fears him, obliging him to accept the intercession.
Allah, exalted is He, is free of need from all creation, and He alone directs all of them. No one can intercede except after His leave; He is the One who grants the intercessor permission and He is the One who accepts the intercession—just as He inspires a supplicant to pray and then answers that prayer. The entire affair belongs to Him.
Thus, if a servant places his hopes in an intercessor from among created beings, that intercessor may choose not to intercede for him; and even if he chooses to, Allah may not grant him permission to intercede, nor accept his intercession.