2134 - وَ سُمِّيَ اَلْأَبْطَحُ أَبْطَحاً لِأَنَّ آدَمَ عَلَيْهِ اَلسَّلاَمُ أُمِرَ أَنْ يَنْبَطِحَ فِي بَطْحَاءِ جَمْعٍ فَانْبَطَحَ حَتَّى اِنْفَجَرَ اَلصُّبْحُ وَ إِنَّمَا أُمِرَ آدَمُ عَلَيْهِ اَلسَّلاَمُ بِالاِعْتِرَافِ لِيَكُونَ سُنَّةً فِي وُلْدِهِ وَ أَذِنَ رَسُولُ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ لِلْعَبَّاسِ أَنْ يَبِيتَ بِمَكَّةَ لَيَالِيَ مِنًى مِنْ أَجْلِ سِقَايَةِ اَلْحَاجِّ وَ إِنَّمَا أَحْرَمَ رَسُولُ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ مِنَ اَلشَّجَرَةِ لِأَنَّهُ لَمَّا أُسْرِيَ بِهِ إِلَى اَلسَّمَاءِ فَكَانَ بِالْمَوْضِعِ اَلَّذِي بِحِذَاءِ اَلشَّجَرَةِ نُودِيَ يَا مُحَمَّدُ قَالَ «لَبَّيْكَ» قَالَ أَ لَمْ أَجِدْكَ يَتِيماً فَآوَيْتُ وَ وَجَدْتُكَ ضَالاًّ فَهَدَيْتُ فَقَالَ اَلنَّبِيُّ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ «اَلْحَمْدُ وَ اَلنِّعْمَةُ وَ اَلْمُلْكُ لَكَ لاَ شَرِيكَ لَكَ» فَلِذَلِكَ أَحْرَمَ مِنَ اَلشَّجَرَةِ دُونَ اَلْمَوَاضِعِ كُلِّهَا وَ أَمَّا تَقْلِيدُ اَلْبُدْنِ فَلِيُعْرَفَ أَنَّهَا بَدَنَةٌ وَ يَعْرِفُهَا صَاحِبُهَا بِنَعْلِهِ اَلَّذِي يُقَلِّدُهَا بِهِ وَ اَلْإِشْعَارُ إِنَّمَا أُمِرَ بِهِ لِيَحْرُمَ ظَهْرُهَا عَلَى صَاحِبِهَا مِنْ حَيْثُ أَشْعَرَهَا وَ لاَ يَسْتَطِيعَ اَلشَّيْطَانُ أَنْ يَتَسَنَّمَهَا ».
Hadith.2134 - Al-Abtah was named 'Abtah' because Adam 
was commanded to prostrate himself in the flat expanse of Jam’ until dawn broke. Adam was commanded to make this confession so that it would become a tradition among his descendants.
The Messenger of Allah (swt), peace and blessings be upon him and his family, granted permission to Al-Abbas to stay in Makkah during the nights of Mina to provide water for the pilgrims.
The Messenger of Allah (swt), peace and blessings be upon him and his family, entered Ihram from the tree (Dhul-Hulayfah) because, when he was taken on the Night Journey to the heavens, he was at the place opposite the tree and was called out, 'O Muhammad.'
He ﷺ replied: 'Here I am.'
Then it was said, 'Did We not find you an orphan and shelter you? And We found you wandering and guided you?' (Surah Ad-Duha 93:6-7).
The Prophet, peace and blessings be upon him and his family, responded: 'All praise, blessings, and sovereignty belong to You; You have no partner.'
For this reason, He ﷺ entered Ihram from the tree instead of any other location.
As for marking the sacrificial animals with necklaces (taqlid), it is so they can be recognized as sacrificial animals, and the owner can identify them by the sandal tied as their necklace. Marking (ish’ar) was commanded to ensure the animal's back would be forbidden for its owner to use once it was marked, and so Satan would not be able to mount it.
