Sunan Ibn Majah Book 34, Hadith 6
the Prophet (saas) used to say: "Allahumma inni as'alukal-huda wat-tuqa wal-'afaf wal-ghina (O Allah, I ask You for guidance, piety, chastity and affluence)."
"Fatimah came to the Prophet (saas) to ask him for a servant, and he said: 'I do not have anything to give you.' So she went back, but after that he came to her and said: 'Is what you asked for dearer to you, or something better than that?' 'Ali said to her: 'Say: something better than that.' So she said it. He said: 'Say: Allahumma Rabbas-samawatis-Sab'i wa Rabbal-'Arshil-'Azim, Rabbana wa Rabba Kulli shay'in, munzil at-Tawrati wal-Injili wal-Qur'anil-'Azim. Antal-Awwalu fa laysa qablaka shay', wa Antal-Akiru fa laysa ba'daka shay', Antaz-Zahiru fa laysa fawqaka shay', wa Antal-Batinu fa laysa dunaka shay', Iqdi 'annad-daina wa aghnina minal-faqr (O Allah, Lord of the seven heavens and Lord of the Mighty Throne, Our Lord, and the Lord of Everything, Revealer of the Tawrah, the Injil and the Magnificent Qur'an. You are the First and there is nothing after You; You are the Last and there is nothing after You. You are the Most High, and there is nothing above You, and You are the Most Near and there is nothing nearer than You. Settle our debts and make us free of want).'"
"The Messenger of Allah (saas) used to say: 'Allahummanfa'ni bima 'allamtani, wa 'allimni ma yanfa'uni, wa zidni 'ilman, wal-hamdu lillahi 'ala kulli hal, wa a'udhu billahi min 'adhabin-nar (O Allah, benefit me by that which You have taught me, and teach me that which will benefit me, and increase me in knowledge. Praise is to Allah in all situations, and I seek refuge with Allah from the torment of the Fire).'"