Nasai

“Ten days” means until the sacrifice is slaughtered on the tenth day. After performing the sacrifice, one should have their hair cut.

Hadith Commentary: Benefits and Issues: The virtue and superiority of a time depend on those great and significant events that occur in it by the will of Allah, or will occur, or on the blessings and favors of Allah that are bestowed upon mankind on that day. The superiority of the day of Jumu‘ah (Friday) is also due to these very matters: that on this day, the forefather of humankind was created.

Then, he was placed temporarily in the abode of Allah’s mercy so that love for it and eagerness to attain it would be instilled in his heart.

Then, he was sent to the world to begin the lineage of humankind, so that he and his progeny, by living in accordance with the code of life revealed by Allah, would demonstrate their ability to dwell eternally in Paradise and become deserving of its attainment. In this way, the perfections and virtues of the system of vicegerency (khilafah) in the world would be manifested before the angels, as Allah has indicated in His statement: “Indeed, I know that which you do not know,” and ultimately, by establishing the Day of Resurrection, those who lived their lives according to Allah’s guidance in the world will be honored and rewarded.

All the events that occurred on Jumu‘ah, due to being manifestations of Allah’s wisdom, power, and mercy, are the reason for the virtue and superiority of this day.

The expulsion of Adam (alayhis salam) from Paradise is, in reality, a blessing because it was a prelude to his permanent and eternal residence in Paradise, since his initial entry into Paradise was temporary.

He was, in fact, created for vicegerency (khilafah) on earth.

As Allah, the Exalted, has said: “Indeed, I will make upon the earth a vicegerent.”

Explanation:
1:
The scholars have reconciled between the hadith of Aisha radi Allahu anha and that of Umm Salamah by interpreting the narration of Umm Salamah as indicating a discouraged prohibition (nahi tanzihi).
(And Allah knows best)

Benefits and Issues:
It is necessary for the one who intends to offer the sacrifice (qurbani)
that during the first nine days of Dhu al-Hijjah, he should not cut his hair or nails.
However, for the one who does not intend to offer the sacrifice,
this is not necessary.
Nevertheless, if such a person gets a haircut or similar grooming done on the day of Eid al-Adha, he will not be deprived of the virtue and other merits of the sacrifice.
As has been mentioned previously in the narrations from Abdullah ibn Amr ibn al-As.

Benefits and Issues:
The meaning of not touching is that one should neither cut the hair nor remove hair from the skin.
This restriction is from the beginning of the month of Dhu al-Hijjah until the day of Eid, up to the time of sacrifice.

(1) The legitimacy of sacrifice (qurbani) is established from this hadith.
(2) This blessed hadith also teaches the ruling that a person who intends to perform sacrifice should not cut or trim his hair and nails, etc., after the sighting of the crescent of Dhu al-Hijjah.
(3) “Sees the crescent”—the intent is that the crescent of Dhu al-Hijjah has appeared; it is not necessary that every individual actually sees it.
(4) “Intends to perform sacrifice”—that is, the restriction does not apply to one who does not intend to offer sacrifice, but it is better for such a person to have his hair cut during the days of sacrifice.

Benefit:
This hadith establishes that whoever intends to offer a sacrifice (qurbani), after the crescent of Dhu al-Hijjah is sighted, should not cut hair from any part of his body, nor trim his nails. Note that if a single sacrifice is being offered on behalf of all members of a household, then during these days, none of the members should cut their hair or trim their nails. Those who are not offering a sacrifice are not bound by any restriction regarding cutting hair during these ten days. However, if someone who is not offering a sacrifice also refrains from cutting hair or nails during these ten days, he too will receive the full reward of sacrifice. (Sunan Abi Dawud: 2789, its chain is authentic)