Is it permissible to break the prayer in congregation to help someone who faints, falls ill, or has a heart attack?

Islam requires the protection of life, property, religion, intellect, and lineage, and has made everything that serves to protect these obligatory, while prohibiting anything that harms them. (Shatibi, al-Muwafaqat, 1/31 ff.) Human life is extremely important and must be protected. Prayer is also one of the five fundamental pillars of religion and is considered its foundation. (Tirmidhi, Iman, 8 [2616])

Normally, a prayer that has begun should not be broken. However, in cases of necessity—such as protecting property, saving a life, or preventing significant harm—both obligatory and voluntary prayers may be broken. (see al-Fatawa al-Hindiyya, 1/109) In some situations, breaking the prayer is obligatory, in others it is permissible, and sometimes it is recommended. If there is a danger to a person's life, it is obligatory to break the prayer to help that person. (Ibn Abidin, Radd al-Muhtar, 2/51-52)

Accordingly, if someone faints, has a heart attack, or is in danger of falling into the sea or a well during congregational prayer, those praying nearby should stop their prayer and help. They can make up their prayer later. (Ibn Nujaym, al-Bahr, 2/77) For Allah has commanded that, in cases of necessity, the rights of others take precedence. (Sarakhsi, al-Mabsut, 2/186)

Source: T.C. Diyanet İşleri Başkanlığı, Din İşleri Yüksek Kurulu