Sunan Ibn Majah 339
It was narrated from Ya'la bin Murrah that his father said:
"I was with the Prophet on a journey, and he wanted to relieve himself. He said to me: 'Go to those two small date-palm trees and tell them: "The Messenger of Allah orders you to come together.'" So they came together and he concealed himself behind them, and relieved himself. Then he said to me: 'Go to them and tell them: "Go back, each one of you, to your places.'" So I said that to them and they went back."
حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا وَكِيعٌ، عَنِ الأَعْمَشِ، عَنِ الْمِنْهَالِ بْنِ عَمْرٍو، عَنْ يَعْلَى بْنِ مُرَّةَ، عَنْ أَبِيهِ، قَالَ كُنْتُ مَعَ النَّبِيِّ ـ صلى الله عليه وسلم ـ فِي سَفَرٍ فَأَرَادَ أَنْ يَقْضِيَ حَاجَتَهُ فَقَالَ لِي ‏"‏ ائْتِ تِلْكَ الأَشَاءَتَيْنِ ‏"‏ ‏.‏ - قَالَ وَكِيعٌ يَعْنِي النَّخْلَ الصِّغَارَ ‏.‏ قَالَ أَبُو بَكْرٍ الْقِصَارَ - ‏"‏ فَقُلْ لَهُمَا إِنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ يَأْمُرُكُمَا أَنْ تَجْتَمِعَا ‏"‏ ‏.‏ فَاجْتَمَعَتَا فَاسْتَتَرَ بِهِمَا فَقَضَى حَاجَتَهُ ثُمَّ قَالَ لِي ‏"‏ ائْتِهِمَا فَقُلْ لَهُمَا لِتَرْجِعْ كُلُّ وَاحِدَةٍ مِنْكُمَا إِلَى مَكَانِهَا ‏"‏ ‏.‏ فَقُلْتُ لَهُمَا فَرَجَعَتَا ‏.‏