Riyad as-Salihin

Abu Musa (May Allah be pleased with him) reported: The Jews used to intentionally sneeze in the presence of the Messenger of Allah (ﷺ) hoping that he would say to them: 'Yarhamukum-ullah (may Allah have mercy on you),' but he would respond with: "Yahdikum-ullahu wa yuslihu balakum (may Allah guide you and render sound your state of affairs)."

[Abu Dawud and At- Tirmidhi].