Narrated Anas bin Malik:
While Abu Bakr was leading the people in the morning prayer on a Monday, the Prophet came towards them suddenly having lifted the curtain of 'Aisha's house, and looked at them as they were...
O Allah, place light in my heart, and on my tongue light, and in my ears light and in my sight light, and above me light, and below me light, and to my right light, and to my left light, and before me light and behind...
-> Read More Info: Al-Bukhari 11 / 116 (Hadith no. 6316) and by Muslim 1/526, 529-530 (Hadithno. 763).