Sahih Muslim, 142

It is narrated on the authority of Sunabihi that he went to Ubada b. Samit when he was about to die. I burst into tears. Upon this he said to me:Allow me some time (so that I may talk with you). Why do you weep? By Allah, if I am asked to bear witness, I would certainly testify for you (that you are a believer). Should I be asked to intercede, I would certainly intercede for you, and if I have the power, I would certainly do good to you, and then observed: By Allah, never did I hear anything from the Messenger of Allah (ﷺ) which could have been a source of benefit to you and then not conveyed it to you except this single hadith. That I intend to narrate to you today, since I am going to breathe my last. I heard the Messenger of Allah (ﷺ) say: He who testifies that there is no god but Allah and that Muhammad is the messenger of Allah, Allah would prohibit the fire of Hell for him

Rapporté par Sunabihi رضي الله عنه : Il est allé voir Ubadah ibn Samit alors qu’il était sur le point de mourir. J’ai fondu en larmes. Il m’a dit : « Laisse-moi un moment. Pourquoi pleures-tu ? Par Allah, si l’on me demandait de témoigner pour toi, je le ferais. Si l’on me demandait d’intercéder pour toi, je le ferais. Si je le pouvais, je te ferais du bien. Par Allah, je n’ai jamais entendu du Messager d’Allah ﷺ quelque chose qui pourrait t’être utile sans te le transmettre, sauf ce hadith que je vais te raconter aujourd’hui, car je sens que je vais mourir. J’ai entendu le Messager d’Allah ﷺ dire : “Celui qui atteste qu’il n’y a de dieu qu’Allah et que Muhammad est le messager d’Allah, Allah lui interdira le feu de l’Enfer.” »