Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:9747Abū Aḥmad al-Mihrajānī > Abū Bakr b. Jaʿfar > Muḥammad b. Ibrāhīm > Ibn Bukayr > Mālik > Nāfiʿ > ʿAbdullāh b. ʿUmar > ʿUmar b. al-Khaṭṭāb

[Machine] No one should leave the Hajj until they complete the Tawaf around the Kaaba, as it is the final ritual of the pilgrimage.  

البيهقي:٩٧٤٧أَخْبَرَنَا أَبُو أَحْمَدَ الْمِهْرَجَانِيُّ أنبأ أَبُو بَكْرِ بْنُ جَعْفَرٍ ثنا مُحَمَّدُ بْنُ إِبْرَاهِيمَ ثنا ابْنُ بُكَيْرٍ ثنا مَالِكٌ عَنْ نَافِعٍ عَنْ عَبْدِ اللهِ بْنِ عُمَرَ أَنَّ عُمَرَ بْنَ الْخَطَّابِ ؓ قَالَ

لَا يَصْدُرَنَّ أَحَدٌ مِنَ الْحَاجِّ حَتَّى يَطُوفَ بِالْبَيْتِ وَإنَّ آخِرَ النُّسُكِ الطَّوَافُ بِالْبَيْتِ