And those [angels] apportioning [each] matter, (51:4)

Almuntakhab Fi Tafsir Alquran Alkarim

And by the angels, the attendants and divine Messengers of Allah, who minister the affairs of mankind and all other beings, and apportion to each what is determined by Allah

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(51:4) and execute the great task of apportioning (rainfall): *2

And those [angels] apportioning [each] matter, meaning

*2) The commentators have disputed the commentary of al-Jariyat-i yusran and al-muqassimat-i amran. One group has preferred the view, or held this meaning as admissible, that by these two also are meant the winds; that is, the same very winds then transport the clouds, and spreading over different parts of the earth, distribute the water as and where required according to Allah's command, The other group holds that al-ariyat-i yusran implies fast moving boats, and al-muqassimat-i amran implies the angels who distribute among the creatures their shares of the provisions according to Allah's command. According to a tradition, Hadrat `Umar explained this very meaning of these two sentences and said: "Had I not heard this from the Holy Prophet, I would not have mentioned it." On this very basis, `Allama Alusi has expressed the opinion that it is not permissible to take any other meaning of these sentences than this, and those who have taken any other meaning, have taken undue liberties. But Hafiz Ibn Kathir says that this tradition has weak links of the transmitters and on its basis it cannot be said with absolute certainty that the Holy Prophet might himself have given this commentary of these sentences. There is no doubt that from a good number of the Companions and their immediate followers only this second commentary has been reported, but a good number of the commentators have given the first commentary also, and it fits in better with the context. Shah Rafi`uddin, Shah 'Abdul Qadir and Maulana Mahmud-ul-Hasan also have preferred the first meaning in their translations of the Qur'an.
 

And those [angels] apportioning [each] matter, meaning in Urdu

پھر ایک بڑے کام (بارش) کی تقسیم کرنے والی ہیں