It is narrated from Muhallab bin Abi Sufrah that he was told by a man who heard the Prophet (peace and blessings be upon him) say: "If the enemy attacks you by night, let your battle cry be: 'Ha Mim, la yunsarun' (Ha Mim, they will not be helped)."

It is narrated from Muhallab bin Abi Sufrah that he heard a man narrating from the Prophet (peace and blessings be upon him) that, fearing Abu Sufyan would launch a night attack, he (peace and blessings be upon him) said: "If you are attacked by night, let your call be 'Ha Mim, la yunsarun' (Ha Mim, they will not be helped)." This hadith has a sahih (authentic) chain on the condition of the two Shaykhs (Bukhari and Muslim), except that there is irsal (a missing link) in it; the man whom Muhallab bin Abi Sufrah did not name is Sayyiduna al-Bara' bin Azib (may Allah be pleased with him).

It is narrated from Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Tomorrow you will certainly meet the enemy, so let your battle cry be: 'Ha Mim, the enemy will not be victorious.'"

It is narrated from Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Tomorrow you will certainly meet your enemy (so let your battle cry be Ha Mim, la yunsarun)."

It is narrated from Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Tomorrow you will face (the enemy), so let your battle cry (shi'ar) be: 'Ha Mim, la yunsarun' (Ha Mim, they will not be helped)."

It is narrated from Sayyiduna Salamah bin al-Akwa' (may Allah be pleased with him) that he said: In the time of the Messenger of Allah (peace and blessings be upon him) I took part in a military expedition under the command of Sayyiduna Abu Bakr (may Allah be pleased with him), and at that time the battle cry (shi'ar) of the Companions of the Prophet (peace and blessings be upon him) was 'Amit, amit' (Kill, kill). This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.

It is narrated from Sayyiduna Salamah bin al-Akwa' (may Allah be pleased with him) that the battle cry (shi'ar) of the Prophet (peace and blessings be upon him) was 'Amit, amit' (Kill, kill).