Al-Hajj 22:15

Man kana yathunnu anlan yansurahu Allahu fee addunya wal-akhiratifalyamdud bisababin ila assama-i thummaliyaqtaAA falyanthur hal yuthhibannakayduhu ma yagheeth

Whoever should think that Allāh will not support him [i.e., Prophet Muḥammad (ﷺ)] in this world and the Hereafter - let him extend a rope to the ceiling, then cut off [his breath], and let him see: will his effort remove that which enrages [him]?

If someone thinks that Allah will never help him (the prophet) in this world and in the Hereafter, he should stretch a rope to the sky, then cut (Allah’s communication) off (from the prophet) and see whether his effort can really remove what irritates (him).