Musnad Abu Ya'la al-Mawsili 150:442

A man sneezed in the presence of the Messenger of Allah, may Allah bless him and grant him peace, and said, "What should I say, O Messenger of Allah?" He said, "Say: Praise be to Allah (Al-hamdu lillah)." The people said, "What should we say to him, O Messenger of Allah?" He said, "Say: May Allah have mercy on you (Yarhamuk Allah)." The man said, "What should I reply to them, O Messenger of Allah?" He said, "Say: May Allah guide you and set your affairs right (Yahdikum Allah wa yuslih balakum)."