Bukhari

Mujahid said the meaning of «كنود» is ungrateful. «فأثرن به نقعا» means they raise dust in the morning, they stir up dust. «لحب الخير» means due to the scarcity of wealth. «لشديد» means miser; a miser is called «لشديد». The meaning of «حصل» is to separate or to gather.

«كالفراش المبثوث‏» That is, like scattered locusts, just as they pile upon each other in such a state; this will be the condition (on the Day of Gathering) of mankind, that they will be falling upon one another.

«كالعهن‏» Like colored wool. Abdullah ibn Mas'ud (may Allah be pleased with him) recited it as «الصوف‏.‏ المنفوش» meaning, they will be flying about like carded wool.

Ibn Abbas (may Allah be pleased with them both) said that by «التكاثر‏» is meant having much wealth and many children.

Yahya bin Ziyad al-Farra said that by «العصر» is meant "time"; it is this that is sworn by.

«الحطمة‏» is a name of Hell, just as «سقر» and «لظى» are also among its names.

Mujahid said «أبابيل‏» means flocks of birds coming one after another. Ibn Abbas, may Allah be pleased with them both, said «من سجيل‏» (this word is Persian «معرب») means stones and clay are intended.

Mujahid said that the meaning of «يدع‏» is to repel, that is, he does not let the orphan take his right. He says this is derived from «دعوت». From this also is the word «يوم يدعون‏» in Surah At-Tur (that is, the day they will be raised towards Hell, they will be driven). «ساهون‏» means those who forget, the heedless. «ماعون‏» say that every good deed of manliness is included. Some Arabs call «ماعون‏» water. Ikrimah said that the highest level of «ماعون‏» is giving zakat, and the lowest level is that if a person asks for some goods, he gives it to him and does not refuse him.

Ibn Abbas (may Allah be pleased with them both) said: «شانئك» your enemy.

Narrated Anas: When the Prophet was made to ascend to the Heavens, he said (after his return), "I came upon a river the banks of which were made of tents of hollow pearls. I asked Gabriel. What is this (river?' He replied, 'This is the Kauthar.'

Mujahid said that the meaning of «لإيلاف‏ قريش‏.» is that the hearts of the people of Quraysh were inclined towards travel; in any season, whether summer or winter, traveling was not difficult for them, and by granting them a place in the Haram, they were made secure from enemies. Sufyan ibn ‘Uyaynah said that the meaning of «لإيلاف‏ قريش‏.» is: because of My favor upon Quraysh.