Hadith 12:35
Jabir (RAA) narrated that Allah's Messenger (ﷺ) said:
"Sacrifice only a full-grown animal unless it is difficult for you, in which case you should sacrifice a (six to ten month old) sheep." Reported by Muslim.
وَعَنْ جَابِرٍ - رضى الله عنه - قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ "لَا تَذْبَحُوا إِلَّا مُسِنَّةً, إِلَّا أَنْ يَعْسُرَ عَلَيْكُمْ فَتَذْبَحُوا جَذَعَةً مِنَ اَلضَّأْنِ" } رَوَاهُ مُسْلِم ٌ (1772)