I said: Messenger of Allah, I have a slave girl whom I slapped. This grieved the Messenger of Allah ﷺ. I said to him: Should I not emancipate her? He said: Bring her to me. He said: Then I brought her. He asked: Where is Allah ? She replied: In the heaven. He said: Who am I ? She replied: You are the Messenger of Allah. He said: Emancipate her, she is a believer.  

قُلْتُ يَا رَسُولَ اللَّهِ جَارِيَةٌ لِي صَكَكْتُهَا صَكَّةً فَعَظَّمَ ذَلِكَ عَلَىَّ رَسُولُ اللَّهِ ﷺ فَقُلْتُ أَفَلاَ أُعْتِقُهَا قَالَ ائْتِنِي بِهَا قَالَ فَجِئْتُ بِهَا قَالَ أَيْنَ اللَّهُ قَالَتْ فِي السَّمَاءِ قَالَ مَنْ أَنَا قَالَتْ أَنْتَ رَسُولُ اللَّهِ قَالَ أَعْتِقْهَا فَإِنَّهَا مُؤْمِنَةٌ  

Sharid's mother left a will to emancipate a believing slave on her behalf. So he came to the Prophet ﷺ and said: Messenger of Allah, my mother left a will that I should emancipate a believing slave for her, and I have a black Nubian slave-girl. He mentioned a tradition about the test of the girl. Abu Dawud said: Khalid b. 'Abd Allah narrated this tradition direct from the Prophet ﷺ. He did not mention the name of al-Sharid.  

أَنْ يُعْتِقَ عَنْهَا رَقَبَةً مُؤْمِنَةً فَأَتَى النَّبِيَّ ﷺ فَقَالَ يَا رَسُولَ اللَّهِ إِنَّ أُمِّي أَوْصَتْ أَنْ أُعْتِقَ عَنْهَا رَقَبَةً مُؤْمِنَةً وَعِنْدِي جَارِيَةٌ سَوْدَاءُ نُوبِيَّةٌ فَذَكَرَ نَحْوَهُ  

A man brought the Prophet ﷺ a black slave girl. He said: Messenger of Allah, emancipation of believing slave is due to me. He asked her: Where is Allah ? She pointed to the heaven with her finger. He then asked her: Who am I ? She pointed to the Prophet ﷺ and to the heaven, that is to say: You are the Messenger of Allah. He then said: Set her free, she is a believer.  

أَنَّ رَجُلاً أَتَى النَّبِيَّ ﷺ بِجَارِيَةٍ سَوْدَاءَ فَقَالَ يَا رَسُولَ اللَّهِ إِنَّ عَلَىَّ رَقَبَةً مُؤْمِنَةً فَقَالَ لَهَا أَيْنَ اللَّهُ فَأَشَارَتْ إِلَى السَّمَاءِ بِأُصْبُعِهَا فَقَالَ لَهَا فَمَنْ أَنَا فَأَشَارَتْ إِلَى النَّبِيِّ ﷺ وَإِلَى السَّمَاءِ يَعْنِي أَنْتَ رَسُولُ اللَّهِ فَقَالَ أَعْتِقْهَا فَإِنَّهَا مُؤْمِنَةٌ