The Prophet ﷺ said: I have been commanded to celebrate festival ('Id) on the day of sacrifice, which Allah, Most High, has appointed for this community. A man said: If I do not find except a she-goat or a she-camel borrowed for milk or other benefits, should I sacrifice it? He said: No, but you should clip your hair , and nails, trim your moustaches, and shave your pubes. This is all your sacrifice in the eyes of Allah, Most High. (Using translation from Abū Dāʾūd 2789)
"أُمِرْتُ بيومِ الأَضْحى عيد جعله اللهُ لِهَذِه الأمَّةِ - قيل: أَرَأَيتَ إِنْ لمْ أجدْ إلا منِيحةً: أُنثى. أَفَأُضَحِّي بها؟ قَال: لَا: وَلَكِنْ تأخُذُ مِنْ شَعَرِكَ، وتقلِّمُ أَظْفَارك، وتَقْصُّ شَارِبك، وتَحْلِقُ عانتَك فَتِلْكَ تمامُ ضَحِيَّتِكَ عنْد الله ﷻ".