(34) The Book of 'Umra
كتاب العمرى
(5) Chapter: A Woman Giving A Gift Without Her Husband's Permission
(5) باب عَطِيَّةِ الْمَرْأَةِ بِغَيْرِ إِذْنِ زَوْجِهَا ‏.‏
Sunan an-Nasa'i 3760 
It was narrated from Anas that some meat was brought to the Messenger of Allah and he said:
"What is this?" It was said: "It was given in charity to Barirah." He said: "It is charity for her and a gift for us."
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا وَكِيعٌ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أُتِيَ بِلَحْمٍ فَقَالَ ‏"‏ مَا هَذَا ‏"‏ ‏.‏ فَقِيلَ تُصُدِّقَ بِهِ عَلَى بَرِيرَةَ ‏.‏ فَقَالَ ‏"‏ هُوَ لَهَا صَدَقَةٌ وَلَنَا هَدِيَّةٌ ‏"‏ ‏.‏
Grade :  Sahih (Darussalam)
Reference : Sunan an-Nasa'i 3760
In-book reference : Book 34, Hadith 42
English translation : Vol. 4, Book 34, Hadith 3791