Al-Kāfi - Volume 4 > The Point Where One Discontinues Talbiyah (Here I am, O Lord, to obey Your command)
Hadith #4

4ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ أَبِي الْحَسَنِ الرِّضَا (عَلَيْهِ السَّلاَم) أَنَّهُ سُئِلَ عَنِ الْمُتَمَتِّعِ مَتَى يَقْطَعُ التَّلْبِيَةَ قَالَ إِذَا نَظَرَ إِلَى أَعْرَاشِ مَكَّةَ عَقَبَةَ ذِي طُوًى قُلْتُ بُيُوتُ مَكَّةَ قَالَ نَعَمْ.

4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad who has said the following: “Abu al-Hassan, al-Rida’, ‘Alayhi al-Salam, was asked about when one who is for al-Hajj al-Tamattu‘ (advantageous) must stop saying al-Talbiyah (here I am, O Lord, to obey Your command). He (the Imam) said, ‘He must stop al-Talbiyah when he can see the houses of Makkah, of ‘Aqabah Dhi Tuwa’.’ I asked, ‘Is it the houses of Makkah?’ He (the Imam) replied, ‘Yes, it is the houses of Makkah.’”