Fortress of the Muslim (Hisn al-Muslim)
حصن المسلم
(78) Chapter: When a disbeliever praises Allah after sneezing
(78) ما يقالُ للكافر إذا عطس فحمد الله
Hisn al-Muslim 189 
Yahdīkumullāhu wa yuṣliḥu bālakum. May Allah guide you and set your affairs in order Reference: At-Tirmidhi 5/82, Ahmad 4/400, Abu Dawud 4/ 308. See also Al-Albani, Sahih At-Tirmidhi 2/354.
يَهْـديكُـمُ اللهُ وَيُصْـلِحُ بالَـكُم
Reference : Hisn al-Muslim 189