Al-Kāfi

Hadith 1703
ihram
3ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ حَمَّادٍ عَنِ الْحَلَبِيِّ قَالَ سَأَلْتُهُ عَنْ رَجُلٍ أَتَى الْمَسْجِدَ الْحَرَامَ وَقَدْ أَزْمَعَ بِالْحَجِّ يَطُوفُ بِالْبَيْتِ قَالَ نَعَمْ مَا لَمْ يُحْرِمْ.
3. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hammad from al-Halabiy who has said the following: “I once asked him (the Imam) (a.s.), about a man who comes to Masjid al-Haram with the intention to commence al-Hajj, if he can perform Tawaf around the House. He (the Imam) said, ’Yes, as long as he has not assumed the state of Ihram.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī