Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) narrates that he performed the prayer of fear with the Messenger of Allah (peace be upon him). The Messenger of Allah (peace be upon him) led one group in two rak‘ahs, then led the other group in two rak‘ahs. In this way, the Messenger of Allah (peace be upon him) prayed four rak‘ahs and led each group in two rak‘ahs.
And the prayer of the imam with each group is two rak‘ahs, and this is also the type which I have informed of the permissibility of the follower performing an obligatory prayer behind an imam who is praying a voluntary prayer; since one of the two rak‘ahs was for the Prophet, peace and blessings be upon him, a voluntary act, and for the followers an obligation.
Hadith Referenceصحيح ابن خزيمه / جماع أبواب صلاة الخوف / 1352
And the prayer of the imam with each group is two rak‘ahs, and this is also the type which I have informed of the permissibility of the follower performing an obligatory prayer behind an imam who is praying a voluntary prayer; since one of the two rak‘ahs was for the Prophet, peace and blessings be upon him, a voluntary act, and for the followers an obligation.
Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) narrates that he performed the prayer of fear with the Messenger of Allah (peace be upon him). The Messenger of Allah (peace be upon him) led one group in two rak‘ahs, then led the other group in two rak‘ahs. In this way, the Messenger of Allah (peace be upon him) prayed four rak‘ahs and led each group in two rak‘ahs.
Hadith Referenceصحيح ابن خزيمه / جماع أبواب صلاة الخوف / 1352
Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) narrates regarding the prayer of fear that the Messenger of Allah (peace and blessings be upon him) led a group of people in two rak‘ahs while the other group was engaged in protection and guarding. Then when the Prophet (peace and blessings be upon him) finished with salam, these worshippers left and the others came, so the Prophet (peace and blessings be upon him) led them also in two rak‘ahs and then finished with salam. Imam Abu Bakr (may Allah have mercy on him) says that our companions among the hadith scholars differ regarding Hasan al-Basri’s hearing from Sayyiduna Jabir (may Allah be pleased with him).
Hadith Referenceصحيح ابن خزيمه / جماع أبواب صلاة الخوف / 1353