Ibn Majah

Benefits and Issues:

➊
The mentioned narration has been declared weak in its chain of transmission by our esteemed researcher.
However, he further writes that, based on other supporting evidences, this narration reaches the level of hasan (good).
It is probably for this reason that Shaykh al-Albani rahimahullah has declared it authentic.
Furthermore, Dr. Bashar Awwad writes regarding this hadith
that its chain of transmission is indeed weak,
but the text is authentic.
Therefore, the mentioned narration is actionable and a valid proof.
The noble Companions radi Allahu anhum were very eager for good deeds.
That is why they strove to perform as many righteous actions as possible,
even if it involved much hardship.

➋
The compassion of the Messenger of Allah sallallahu alayhi wa sallam for his ummah is evident.
If the noble Companions radi Allahu anhum had been permitted to exert themselves to such an extent, then later people would also have wanted to act accordingly, but would not have been able to do so.

➌
It is not correct to place a burden on the body beyond what it can bear.

➍
Among the Sufis, there are some practices that have become prevalent
in which the body is subjected to extreme hardship;
these are contrary to the Sunnah.

➎
It is commendable to try to maintain a regular routine of righteous deeds.
However, it is not correct to adhere to it so strictly that there remains practically no distinction between voluntary (nafl) and obligatory (fard) acts.

➏
In the night prayer (tahajjud), it is permissible to recite an amount of Qur'an that is suitable to one's convenience, such as one juz', three juz', or one manzil, etc.