Narrated Abu Ayyub: that the Messenger of Allah ( صلی اللہ علیہ وسلم ) said: "When one of you sneezes let him say: 'Al-Hamdulillahi 'Ala Kulli Hal (All praise is due to Allah in every circumstance).' And let the one replying to him say: "Yarhamukallah (May Allah have mercy upon you).' And let him say to him: 'Yahdikumullah Wa Yuslihu Balakum (May Allah guide you and rectify your affairs).'"

‘Muhammad bin Musanna narrated to us, he said: Muhammad bin Ja’far narrated to me, he said: Shu’bah narrated to me from Ibn Abi Layla with this same chain, a hadith similar to this. Imam Tirmidhi says:
1- Similarly, Shu’bah narrated this hadith from Ibn Abi Layla, and Ibn Abi Layla from Abu Ayyub, from the Prophet (peace and blessings of Allah be upon him).
2- Ibn Abi Layla had confusion in this hadith; sometimes he would say: Abu Ayyub narrates from the Prophet (peace and blessings of Allah be upon him), and sometimes he would say: Ali (may Allah be pleased with him) narrates from the Prophet (peace and blessings of Allah be upon him).

Narrated to me by Muhammad bin Bashar and Muhammad bin Yahya Thaqafi Marwazi, both said:
Narrated to us by Yahya bin Saeed Qattan, and Yahya bin Saeed Qattan from Ibn Abi Layla, Ibn Abi Layla from his brother Isa, Isa from Abdur Rahman bin Abi Layla, Abdur Rahman from Ali (may Allah be pleased with him), and Ali (may Allah be pleased with him) narrated a similar hadith from the Prophet Muhammad (peace and blessings be upon him).