Sunan an-Nasai Book 23, Hadith 2436

أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا مُعْتَمِرٌ، قَالَ سَمِعْتُ بَهْزَ بْنَ حَكِيمٍ، يُحَدِّثُ عَنْ أَبِيهِ، عَنْ جَدِّهِ، قَالَ قُلْتُ يَا نَبِيَّ اللَّهِ مَا أَتَيْتُكَ حَتَّى حَلَفْتُ أَكْثَرَ مِنْ عَدَدِهِنَّ - لأَصَابِعِ يَدَيْهِ - أَنْ لاَ آتِيَكَ وَلاَ آتِيَ دِينَكَ وَإِنِّي كُنْتُ امْرَأً لاَ أَعْقِلُ شَيْئًا إِلاَّ مَا عَلَّمَنِي اللَّهُ عَزَّ وَجَلَّ وَرَسُولُهُ وَإِنِّي أَسْأَلُكَ بِوَحْىِ اللَّهِ بِمَا بَعَثَكَ رَبُّكَ إِلَيْنَا قَالَ ‏"‏ بِالإِسْلاَمِ ‏"‏ ‏.‏ قُلْتُ وَمَا آيَاتُ الإِسْلاَمِ قَالَ ‏"‏ أَنْ تَقُولَ أَسْلَمْتُ وَجْهِيَ إِلَى اللَّهِ وَتَخَلَّيْتُ وَتُقِيمَ الصَّلاَةَ وَتُؤْتِيَ الزَّكَاةَ ‏"‏ ‏.‏

Bahz bin Hakim narrated from his father, that his grandfather said:"I said: 'O Prophet of Allah, I did not come to you until I had sworn more than this many times" the number of fingers on his hands "that I would never come to you or follow your religion. I am a man who does not know anything except that which Allah, the Mighty and Sublime, and His Messenger teach me. I ask you by the Revelation of Allah, with what has your Lord sent your to us? He said: "With Islam.' I said: 'What are the signs of Islam?' He said: 'To say, I submit my face to Allah and give up Shirk, and to establish the Salah and to pay the Zakah