Al-Kāfi

Hadith 1669
ihram
3ـ أَحْمَدُ بْنُ مُحَمَّدٍ عَنِ ابْنِ فَضَّالٍ عَنِ ابْنِ بُكَيْرٍ عَنْ بَعْضِ أَصْحَابِنَا أَنَّهُ سَأَلَ أَبَا عَبْدِ الله (عَلَيْهِ السَّلاَم) عَنِ الْمُتْعَةِ مَتَى تَكُونُ قَالَ يَتَمَتَّعُ مَا ظَنَّ أَنَّهُ يُدْرِكُ النَّاسَ بِمِنًى.
3. Ahmad ibn Muhammad has narrated from ibn Faddal from ibn Bukayr form certain persons of our people who have said the following: “I once asked abu ‘Abd Allah (a.s.), about a man who is for al-Hajj al-Tamattu‘ (advantageous) when can he commence it? He (the Imam) said, ‘He can begin at a time within which he must have confidence to catch up with people in Mina.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī