Say, ' I hold not for myself [the power of] benefit or harm, except what Allah h-Quran Verses

7-Surah Al-A’raf (The Heights ) 188

Say, ‘ I hold not for myself [the power of] benefit or harm, except what Allah has willed. And if I knew the unseen, I could have acquired much wealth, and no harm would have touched me. I am not except a warner and a bringer of good tidings to a people who believe.’

﴿188﴾قُل لَّا أَمْلِكُ لِنَفْسِي نَفْعًا وَلَا ضَرًّا إِلَّا مَا شَاءَ اللَّهُ ۚ وَلَوْ كُنتُ أَعْلَمُ الْغَيْبَ لَاسْتَكْثَرْتُ مِنَ الْخَيْرِ وَمَا مَسَّنِيَ السُّوءُ ۚ إِنْ أَنَا إِلَّا نَذِيرٌ وَبَشِيرٌ لِّقَوْمٍ يُؤْمِنُونَ

Quran's Tafhim ( explanation)

*145). The time of the advent of the Last Day is known to God alone Who knows the Unseen which, in fact, is not known even to the Prophet (peace be on him). Being human, he is not aware what the morrow has in store for him and his family. Had his knowledge encompassed everything - even things that lie beyond the ken of sense-perception and events that lie hidden in the future - he would have accumulated immense benefit and would have been able to avoid a great deal of loss owing to such foreknowledge. That being the case, it is sheer naivety to ask the Prophet about the actual time for the advent of the Last Day.