Construction of the Ark of Nūḥ and the story of the mother of the young child at the time of the Great Flood

that the Messenger of Allah ﷺ said, "If Allah were to show Mercy to anyone from among the nation of Nūḥ, he would show Mercy to Umm al-Ṣabī (mother of the young boy)." The Messenger of Allah ﷺ said, "Nūḥ remained with his nation for a thousand years save fifty inviting them ˹to the Message˺ until the end of his time. He planted trees and they became plentiful/large and they ˹grew˺ in all different ways. Then he cut them and began to make his ship. ˹The people˺ used to pass by and ask him ˹wondering˺ and he would say, 'I am making a ship.', and they would say, 'You're making a ship on land, how would it sail?' He said, 'You will soon find out.' When he was finished and 'fār al-tannūr' (commonly interpreted as the bursting of springs from the ground) and the flooding started in the pathways. Umm al-Ṣabī feared for ˹her child˺ and she loved him intensely. She left toward the mountain until she reached a narrow tract. When the water reach it she left from there until she settled on the mountain. When the water reached up to her neck, she lifted him in her arms until the water washed her away. So if Allah were to show Mercy to anyone among them, he would show Mercy to Umm al-Ṣabī."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «لَوْ رَحِمَ اللَّهُ أَحَدًا مِنْ قَوْمِ نُوحٍ لَرَحِمَ أُمَّ الصَّبِيِّ» قَالَ رَسُولُ اللَّهِ ﷺ: «كَانَ نُوحٌ مَكَثَ فِي قَوْمِهِ أَلْفَ سَنَةٍ إِلَّا خَمْسِينَ عَامًا يَدْعُوهُمْ حَتَّى كَانَ آخِرَ زَمَانِهِ غَرَسَ شَجَرَةً فَعَظُمَتْ وَذَهَبَتْ كُلَّ مَذْهَبٍ ثُمَّ قَطَعَهَا ثُمَّ جَعَلَ يَعْمَلُهَا سَفِينَةً وَيَمُرُّونَ فَيَسْأَلُونَهُ فَيَقُولُ أَعْمَلُهَا سَفِينَةً فَيَسْخَرُونَ مِنْهُ وَيَقُولُونَ تَعْمَلُ سَفِينَةً فِي الْبَرِّ وَكَيْفَ تَجْرِي؟ قَالَ سَوْفَ تَعْلَمُونَ فَلَمَّا فَرَغَ مِنْهَا فَارَ التَّنُّورُ وَكَثُرَ الْمَاءُ فِي السِّكَكِ خَشِيَتْ أُمُّ الصَّبِيِّ عَلَيْهِ وَكَانَتْ تُحِبُّهُ حُبًّا شَدِيدًا فَخَرَجَتْ إِلَى الْجَبَلِ حَتَّى بَلَغَتْ ثُلْمَةً فَلَمَّا بَلَغَهَا الْمَاءُ خَرَجَتْ بِهِ حَتَّى اسْتَوَتْ عَلَى الْجَبَلِ فَلَمَّا بَلَغَ الْمَاءُ رَقَبَتَهَا رَفَعَتْهُ بِيَدِهَا حَتَّى ذَهَبَ بِهَا الْمَاءُ فَلَوْ رَحِمَ اللَّهُ مِنْهُمْ أَحَدًا لَرَحِمَ أُمَّ الصَّبِيِّ۔»  

"لَوْ رَحِمَ الله أَحَدًا مِنْ قَوْمِ نُوحٍ لَرَحِمَ أُمَّ الصَّبِيِّ، كَانَ نُوح مكَثَ فِي قَوْمِهِ أَلْفَ سَنَةٍ إِلَّا خَمسِينَ عَامًا يَدْعُوهُم حَتَّى كَانَ آخِر زَمَانِهِ غَرَسَ شَجَرةً فَعَظمَت فَذَهَبَت كُلَّ مَذْهَب ثُمَّ قَطَعَهَا، ثُمَّ جَعَلَ يَعْمَلُهَا سَفِينَةً فَيَمرُّونَ فيسئلون فيقُول: اعْملهَا سَفِينَة، فَيَسخَرونَ مِنْه وَيَقُولُونَ: يَعْملُ سَفِينَةً فِي البَرِّ، وكَيْفَ تَجْرِي؟ قَالَ: سَوْفَ تَعْلَمُونَ فَلَمَّا فَرَغَ مِنْهَا، وَفَارَ التَّنُّور، وَكَثُر المَاء فِي السكك، خَشيت أُمُّ الصَّبِيِّ عَلَيْه، وكَانَت تُحِبُّهُ حُبًا

شَدِيدًا، فَخَرَجَت بِهِ إِلَى الجَبَل حَتَّى بَلَغَتْ ثُلُثَهُ، فَلمَّا بَلَغَهَا المَاء خَرَجَتْ بِهِ حَتَّى اسْتَوت عَلَى الجَبَل، فَلَمَا بَلَغَ الْمَاءُ رَقَبتَهَا رَفَعَتْهُ بِيَدِهَا، ثُمَّ ذَهَبَ بِهَا المَاءُ، فَلَوْ رَحِمَ اللهُ - تَعَالَى - مِنْهُم أَحَدًا لَرَحِمَ أُمَّ الصَّبِيِّ".