Surah Al-Hajj 22:15

مَن كَانَ يَظُنُّ أَن لَّن يَنصُرَهُ ٱللَّهُ فِى ٱلدُّنْيَا وَٱلْـَٔاخِرَةِ فَلْيَمْدُدْ بِسَبَبٍ إِلَى ٱلسَّمَآءِ ثُمَّ لْيَقْطَعْ فَلْيَنظُرْ هَلْ يُذْهِبَنَّ كَيْدُهُۥ مَا يَغِيظُ

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]?

Translation: Saheeh International

Tafsir

Whoever supposes that God will not help him namely Muhammad (s) His Prophet in this world and the Hereafter let him extend a rope to the ceiling to the roof of his house fixing it there and tying it to his neck and let him hang himself that is let him choke to death because of it by severing his soul from any …

Excerpt from Tafsir al-Jalalayn, commentary on 22:15, via Quran.com. The reader has the full commentary and 9 more tafsirs.