Musnad Ahmad

It is narrated, most likely as a marfu’ hadith, from Sayyiduna Sahl bin Abi Hathmah that in the prayer of fear (Salat al-Khawf), the imam should stand in front, and one row should form behind him and one in front of him. Then, he should have those at the back perform one bowing (ruku’) and two prostrations (sujud), then remain standing until those people complete their second rak’ah and move forward to the place of their companions, and those people come and stand in their place. The imam should then have them also perform one bowing and two prostrations, and then sit until they complete their second rak’ah. Then, at the end, he should say the salam together with all of them.

The previous hadith is also narrated through this second chain of transmission.

Narrated to us by Rawh, narrated to us by Shu'bah, from Abdur-Rahman ibn al-Qasim, from his father, from Salih ibn Khawwat, from Sahl ibn Abi Hathmah, from the Prophet, peace and blessings be upon him, similar to this.

Abdur Rahman bin Mas’ud says that once Sayyiduna Sahl bin Abi Hathmah came to our gathering and narrated this hadith: The Prophet (peace be upon him) said: When you harvest fruit, take some and leave some; leave about one third, and if you cannot do that, then leave one fourth.