The Supplication of the Tashahhud - Section 3 Mishkat al-Masabih 957

Arabic hadith text
وَعَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ: كَانَ رَسُول الله صلى يُسَلِّمُ فِي الصَّلَاةِ تَسْلِيمَةً تِلْقَاءَ وَجْهِهِ ثُمَّ تميل إِلَى الشق الْأَيْمن شَيْئا. رَوَاهُ التِّرْمِذِيّ
Translation

‘A’isha said that God’s Messenger used to give one salutation in the prayer straight in front of him, then incline a little to the right. Tirmidhi transmitted it.