Q 22:15

Whoever thinks that Allah will not help him in this world and in the Hereafter, let him stretch out a rope to the ceiling and let him strangle himself. Then let him see whether his plan will remove that whereat he rages (15)Thus have We sent it down as clear Ayat, and surely, Allah guides whom He wills (16) Allah will definitely help His Messenger ﷺ Ibn 'Abbas said, "Whoever thinks that Allah will not help Muhammad ﷺ in this world and the Hereafter, let him stretch out a rope إِلَى السَّمَاءِ (to the ceiling) to the ceiling in his house, ثُمَّ لْيَقْطَعْ (and let him strangle himself.) let him hang himself with it." This was also the view of Mujahid, 'Ikrimah, 'Ata', Abu Al-Jawza', Qatadah and others. The meaning is: whoever thinks that Allah will not support Muhammad ﷺ and His Book and His Religion, let him go and kill himself if it annoys him so much. For Allah will most certainly help and support him. Allah says: إِنَّا لَنَنْصُرُ رُسُلَنَا وَالَّذِينَ آمَنُوا فِي الْحَيَاةِ الدُّنْيَا وَيَوْمَ يَقُومُ الْأَشْهَادُ (Verily, We will indeed make victorious Our Messengers and those who believe in this world's life and on the Day when the witnesses will stand forth.)(40:51). Allah says here: فَلْيَنظُرْ هَلْ يُذْهِبَنَّ كَيْدُهُ مَا يَغِيظُ (Then let him see whether his plan will remove that whereat he rages!) As-Suddi said, "Meaning, in the case of Muhammad ﷺ" 'Ata' Al-Khurasani said, "Let him see whether that will cure the rage he feels in his heart." وَكَذَٰلِكَ أَنزَلْنَاهُ (Thus have We sent it down) the Qur'an. آيَاتٍ بَيِّنَاتٍ (as clear Ayat,) clear in its wording and its meaning, evidence from Allah to mankind. وَأَنَّ اللَّهَ يَهْدِي مَن يُرِيدُ (and surely, Allah guides whom He wills.) He sends astray whomsoever He wills and He guides whomsoever He wills, and He has complete wisdom and definitive proof in doing so. لَا يُسْأَلُ عَمَّا يَفْعَلُ وَهُمْ يُسْأَلُونَ (He cannot be questioned about what He does, while they will be questioned.)[21:23]. Because of His wisdom, mercy, justice, knowledge, dominion and might, no one can overturn His ruling, and He is swift in bringing to account.