Hadith 13202

(حديث مرفوع) حَدَّثَنَا عَبْدُ الصَّمَدِ ، حَدَّثَنَا هِشَامٌ ، عَنْ قَتَادَةَ ، عَنْ أَنَسٍ ، قَالَ : " كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُضَحِّي بِكَبْشَيْنِ أَمْلَحَيْنِ أَقْرَنَيْنِ ، يَذْبَحُهُمَا بِيَدِهِ ، وَيَضَعُ رِجْلَهُ عَلَى صِفَاحِهِمَا ، وَيُسَمِّي وَيُكَبِّرُ " .
It is narrated from Hazrat Anas bin Malik (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) used to offer two black and white horned rams as sacrifice, and he would mention the name of Allah and say Takbeer. I saw that the Prophet (peace and blessings be upon him) would slaughter them with his own hand and would place his foot on their side.
Hadith Reference مسند احمد / مسند المكثرين من الصحابة / 13202
Hadith Grading حکم دارالسلام: إسناده صحيح، خ: 7399 م: 1966