What is the authenticity of the following hadith: "O people! Say there is no god worthy of worship except Allah and you will be successful," which is quoted in Tafsir Ibn Kathir (Abridged) [vol.10, Darussalam, pp. 623-624]?
All perfect praise be to Allah, the Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.
The hadeeth which you asked about was cited by Imaam Ahmad in his book Al-Musnad and by Ibn Hibbaan in his book Saheeh Ibn Hibbaan. Shaykh Al-Albaani classified it as Saheeh (sound) in his book At-Taʻleeqaat Al-Hisaan ʻala Saheeh Ibn Hibbaan.
Allah knows best.
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