You could find no other part (to slap) but the prominent part of her face. See I was one of the seven sons of Muqarrin, and we had but only one slave-girl. The youngest of us slapped her, and Messenger of Allah ﷺ commanded us to set her free. 2097  

لَهُ سُوَيْدُ بْنُ مُقَرِّنٍ عَجَزَ عَلَيْكَ إِلاَّ حُرُّ وَجْهِهَا لَقَدْ رَأَيْتُنِي سَابِعَ سَبْعَةٍ مِنْ بَنِي مُقَرِّنٍ مَا لَنَا خَادِمٌ إِلاَّ وَاحِدَةٌ لَطَمَهَا أَصْغَرُنَا فَأَمَرَنَا رَسُولُ اللَّهِ ﷺ أَنْ نُعْتِقَهَا  

We were staying in the house of Suwaid b. Muqarrin. There was among us an old man who was hot-tempered. He had a slave-girl with him. He gave a slap on her face. I never saw Suwaid more angry than on that day. He said: there is no alternative for you except to free her. I was the seventh child in order of Muqarrin and we had only a female servant. The youngest of us gave a slap on her face. The prophet (May peace be upon him) commanded us to set her free.  

عَجَزَ عَلَيْكَ إِلاَّ حُرُّ وَجْهِهَا لَقَدْ رَأَيْتُنَا سَابِعَ سَبْعَةٍ مِنْ وَلَدِ مُقَرِّنٍ وَمَا لَنَا إِلاَّ خَادِمٌ فَلَطَمَ أَصْغَرُنَا وَجْهَهَا فَأَمَرَنَا النَّبِيُّ ﷺ بِعِتْقِهَا  

"We were seven brothers without a servant except one, and one of us slapped her, so the Prophet ﷺ ordered us to free her."  

لَقَدْ رَأَيْتُنَا سَبْعَةَ إِخْوَةٍ مَا لَنَا خَادِمٌ إِلاَّ وَاحِدَةٌ فَلَطَمَهَا أَحَدُنَا فَأَمَرَنَا النَّبِيُّ ﷺ أَنْ نُعْتِقَهَا قَالَ وَفِي الْبَابِ عَنِ ابْنِ عُمَرَ  

[Machine] "I saw myself as the seventh among my brothers, and we only had one servant. So, one of us slapped him, and the Prophet ﷺ ordered us to set him free."  

أَنَّ الصُّورَةَ مُحَرَّمَةٌ لَقَدْ رَأَيْتُنِي سَابِعَ سَبْعَةٍ مَعَ إِخْوَتِي وَمَا لَنَا إِلَّا خَادِمٌ وَاحِدٌ فَلَطَمَهُ أَحَدُنَا فَأَمَرَنَا النَّبِيُّ ﷺ أَنْ نُعْتِقَهُ  

[Machine] Did you find anything except a free face? I have seen myself, and we are the seventh of seven sons of Muqarrin. We have only one servant whom one of us has appointed, and he slapped him. Then the Messenger of Allah ﷺ commanded us that when we return, we should set him free, so we set him free.  

أَمَا وَجَدْتَ إِلَّا حُرَّ وَجْهِهِ وَلَقَدْ رَأَيْتُنِي وَنَحْنُ سَابِعُ سَبْعَةٍ مِنْ وَلَدِ مُقَرِّنٍ وَمَا لَنَا خَادِمٌ إِلَّا وَاحِدٌ عَمَدَ إِلَيْهِ وَاحِدٌ فَلَطَمَهُ فَأَمَرَنَا رَسُولُ اللهِ ﷺ إِذَا رَجَعْنَا أَنْ نُعْتِقَهُ فَأَعْتَقْنَاهُ  

We were staying in the house of Suwaid b. Muqarrin. There was among us an old man who was hot-tempered. He had a slave-girl with him. He gave a slap on her face. I never saw Suwaid more angry than on that day. He said: there is no alternative for you except to free her. I was the seventh child in order of Muqarrin and we had only a female servant. The youngest of us gave a slap on her face. The prophet (May peace be upon him) commanded us to set her free. (Using translation from Abū Dāʾūd 5166)   

«أَعَجَزَ عَلَيْكَ إِلَّا حُرُّ وَجْهِهَا؟ لَقَدْ رَأَيْتُنِي سَابِعَ سَبْعَةٍ مِنْ وَلَدِ مُقَرِّنٍ وَمَا لَنَا خَادِمٌ إِلَّا خَادِمٌ فَلَطَمَ أَصْغَرُنَا وَجْهَهَا فَأَمَرَنَا رَسُولُ اللهِ ﷺ بِعِتْقِهَا»  

[Machine] "That the picture is forbidden. I saw myself as the seventh of seven brothers during the time of the Messenger of Allah ﷺ . We had no one but a servant, so one of us slapped him. The Messenger of Allah ﷺ commanded us to set him free."  

أَنَّ الصُّورَةَ مُحَرَّمَةٌ لَقَدْ رَأَيْتُنِي وَأَنَا سَابِعُ سَبْعَةِ إِخْوَةٍ عَلَى عَهْدِ رَسُولِ اللهِ ﷺ مَا لَنَا إِلَّا خَادِمٌ فَلَطَمَهُ أَحَدُنَا فَأَمَرَهُ رَسُولُ اللهِ ﷺ أَنْ نَعْتِقَهُ»  

[Machine] Did his face get slapped by Suwayd bin Muqarrin? I saw myself as the seventh of seven and we only have one servant, so one of us slapped her. So the Messenger of Allah, ﷺ , ordered that she be freed. This is the wording of the Hadith of Adam.  

لَهُ سُوَيْدُ بْنُ مُقَرِّنٍ ؓ لَطَمْتَ وَجْهَهَا؟ لَقَدْ رَأَيْتُنِي سَابِعَ سَبْعَةٍ وَمَا لَنَا إِلَّا خَادِمٌ فَلَطَمَهَا بَعْضُنَا فَأَمَرَهُ رَسُولُ اللهِ ﷺ أَنْ يُعْتِقُهَا لَفْظُ حَدِيثِ آدَمَ