Al-Kāfi - Volume 4 > Matters Permissible in the State of al-’ Ihram after Shower, Such as Perfume, Hunting and Others Before Talbiyah (Here I am O Lord, to obey Your command)
Hadith #10

10ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ إِسْمَاعِيلَ بْنِ مَرَّارٍ عَنْ يُونُسَ عَنْ زِيَادِ بْنِ مَرْوَانَ قَالَ قُلْتُ لأَبِي الْحَسَنِ (عَلَيْهِ السَّلاَم) مَا تَقُولُ فِي رَجُلٍ تَهَيَّأَ لِلإِحْرَامِ وَفَرَغَ مِنْ كُلِّ شَيْ‏ءٍ الصَّلاةِ وَجَمِيعِ الشُّرُوطِ إِلاَّ أَنَّهُ لَمْ يُلَبِّ أَ لَهُ أَنْ يَنْقُضَ ذَلِكَ وَيُوَاقِعَ النِّسَاءَ فَقَالَ نَعَمْ.

10. Ali ibn Ibrahim has narrated from his father from ‘Isma‘il ibn Marrar from Yunus from Ziyad ibn Marwan who has said the following: “I once asked abu al-Hassan, ‘Alayhi al-Salam, about a man who is ready for Ihram and has completed everything, like Salat (prayer) and all other conditions except Talbiyah; if he can cancel it all for sexual intercourse. He (the Imam) said, ‘Yes, he can do so,”’