I said: This isnād is weak. Sabaī, who is Ibn Khālid al-Yashkurī, was narrated from by a group of reliable narrators. Ibn Ḥibbān mentioned him in "al-Thiqāt" (1/82), and al-ʿAjlī also deemed him reliable as in "al-Tahdhīb," but I did not see him in "Tartīb Thiqāt al-ʿAjlī" by al-Ḥāfiẓ al-Haythamī. Al-Ḥāfiẓ said in "al-Taqrīb": "Acceptable." Meaning when corroborated. As for Ṣakhr ibn Badr al-ʿAjlī, he is unknown. Al-Dhahabī said: "No one narrated from him except Abū al-Tayyāḥ al-Ḍubʿī." I said: But he was corroborated by Naṣr ibn ʿĀṣim al-Laythī from Khālid with a similar narration, and in it: "If there is a caliph of Allāh on earth at that time, who strikes your back and takes your wealth, then adhere to him." It was narrated by Abū Dāwūd (4244 and 4245) and Aḥmad. I said: This isnād is ḥasan, for those below Khālid are reliable narrators of Muslim, so it is more authentic than the narration of Ṣakhr ibn Badr which includes "the caliph of Allāh." This addition was rejected by Shaykh al-Islām Ibn Taymiyyah, may Allāh have mercy on him, and if it were authentic from the Messenger of Allāh (ṣallá Allāhu ʿalayhi wa-sallam), we would not heed his rejection. There is another route for the last part of the ḥadīth from ʿAbd al-Raḥmān ibn Qurṭ from Ḥudhayfah ibn al-Yamān with the wording: "There will be tribulations, at their gates are callers to the Fire. So, if you die while biting onto the trunk of a tree, it is better for you than following any of them." It was narrated by Ibn Mājah (3981). However, this Ibn Qurṭ is unknown.