The beginning of the Flood and Nuh loads Every Creature in Pairs upon the Ship

This was the promise of Allah to Nuh , when the command of Allah came, the rain was continuous and there was a severe storm which did not slacken or subside, as Allah said,

فَفَتَحْنَآ أَبْوَبَ السَّمَآءِ بِمَاءٍ مُّنْهَمِرٍ - وَفَجَّرْنَا الاٌّرْضَ عُيُوناً فَالْتَقَى المَآءُ عَلَى أَمْرٍ قَدْ قُدِرَ - وَحَمَلْنَاهُ عَلَى ذَاتِ أَلْوَحٍ وَدُسُرٍ - تَجْرِى بِأَعْيُنِنَا جَزَآءً لِّمَن كَانَ كُفِرَ

As stated in the second (42) and third (43) verse, when the whole family of Sayyidna Nuh (علیہ السلام) had boarded the ark, a son whose name has been reported as Kin` an (Canaan) was left out. Out of his paternal compassion, Sayyidna Nuh (علیہ السلام) called out to him asking him to come on board and warning him that he should not stay in the company of disbelievers otherwise he would be drowned with them. This young man was already in league with those disbelieving enemies, in fact, was himself a disbeliever. But, in all likelihood, Sayyidna Nuh (علیہ السلام) did not know that he was a disbeliever. And even if he did know that, the good counsel he gave to his son to board the boat and leave the company of the disbelievers was in the spirit of asking him to repent from disbelief and enter the fold of faith. But, the unfortunate son still took the flood to be something that will pass away and told him not to worry about him for he would be safe from the flood by climbing a mountain. Sayyidna Nuh warned him again that nothing was going to save anyone, not even a mountain, from the punishment of Allah on that day and that there was no way one could remain safe from it unless Allah Himself were to show mercy to him. This father-son di-alogue was on from a distance when rose a wave of the flood and took him down and away. Historical reports say that the level of the Flood was fifteen yards above the highest mountain peak and according to some other reports, it was forty yards high.

In the fourth verse (44), the recession of the flood and the return of things to normal conditions has been described in a particular manner. Addressing the earth, Allah Ta` ala commanded: يَا أَرْ‌ضُ ابْلَعِي مَاءَكِ (0 earth, suck in your water). The sense was that the amount of water which had bulged out from the earth was to be taken back in by the earth. The sky was commanded to stop raining. The water from rains that had already accumulated on the earth, nature channeled it into rivers and streams for human beings to benefit by it. (Tafsir Qurtubi, Mazhari)