Halakhah sa Mga Awit 49:10: Kitzur Shulchan Arukh & Shulchan Arukh, Yoreh De'ah

From the moment that his death is imminent, no one is permitted to leave him, so that his soul does not depart when he is alone, because the soul is shocked as it departs from the body. It is a mitzvah to stand by a person, as the soul is departing from him, as it is said, "Shall he then live forever, shall he never see the grave? For he sees that wise men die, etc."⁴Psalms 49:10–11. It is proper to gather ten adult males to be present at the departure of the soul. They must not God forbid engage in idle talk, rather they should engage in Torah subjects, and in the recitation of Psalms and other supplication, as arranged in the seifer, Maavar Yabbok. It is customary to light candles in the presence of a dying person.

As soon as he feels death approaching, they should not separate themselves from him, lest his soul depart whilst he is alone.²²Kol Bo. For the soul suffers grief when it has to leave the body alone. And it is a religious duty to stand near the [dying] person during the departure of the soul, as it is written,²³Ps. XLIX, 10. 'That he should still live alway; that he should not see the pit. For he seeth that wise men die, the fool and the brutish together perish etc.'²⁴Hag. Alfasi ibid. — G.