´Ali bin Rabi'ah Al-Asadi said:` "A man died among the Ansar named Qarazah bin Ka'b, and he was being wailed over. So Al-Mughirah bin Shu'bah came and ascended the Minbar. He uttered thanks and praise to Allah and said: "As for the gravity of wailing in Islam, indeed I heard the Messenger of Allah saying: 'The one who is wailed over is punished as long as he is being wailed over.'"
Hadith Referenceسنن ترمذي / كتاب الجنائز عن رسول الله صلى الله عليه وسلم / 1000
1؎: To loudly wail and cry over the deceased by mentioning his virtues and excellences is called "niyahah" (lamentation). 2؎: This punishment will be upon the person who instructed his heirs to do so, or whose own practice during his lifetime was such, and his family members are performing lamentation over him in imitation of his actions.
Explanation & Benefits
Shaykh Dr. Abdur Rahman Freywai
Commentary: 1؎ : To loudly wail over the deceased by enumerating his virtues and excellences is called "niyahah" (wailing). 2؎ : This punishment will be for the person who either instructed his heirs to do so, or whose own practice in life was such, and his family members are wailing over him in imitation of his example.
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 1000
A hadith like this has been transmitted by Hammam bin Munabbih from the Apostle of Allah (ﷺ) on the authority of Abu Hurairah (RA) .
Shaykh Maulana Abdul Aziz Alvi
Hadith Commentary:Benefits and Issues: According to unanimous agreement of the four Imams (a’immah arba‘ah), if the follower (muqtadi) precedes the imam in the opening takbir (takbir tahrimah), his prayer will not be valid. Furthermore, according to the three Imams and the two companions (sahibayn), even performing the takbir simultaneously (muqaranah) with the imam is not correct, whereas according to Imam Abu Hanifah rahimahullah, simultaneity is permissible.
The requirement of following the imam is that the follower should follow the imam in all states of the prayer, remaining behind him. In any state or action, the follower should neither perform the act simultaneously with the imam (muqaranah), nor precede or hasten before him (mubadarah, musabaqat, sabq), nor oppose him.
Source: Tuhfat al-Muslim: Commentary on Sahih Muslim, Page: 933