When Should The One Performing 'Umrah Discontinue The Talbiyah ?

Narrated Abdullah ibn Abbas:

The Prophet ﷺ said: A person who performs umrah should shout talbiyah till he touches the Black Stone.

Abu Dawud said: This tradition has been transmitted by 'Abd al-Malik b. Abi Sulaiman and Hammam from 'Ata on the authority of Ibn 'Abbas as his own statement (i.e. the tradition was not attributed to the Prophet)

حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا هُشَيْمٌ، عَنِ ابْنِ أَبِي لَيْلَى، عَنْ عَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، عَنِ النَّبِيِّ ﷺ قَالَ " يُلَبِّي الْمُعْتَمِرُ حَتَّى يَسْتَلِمَ الْحَجَرَ " . قَالَ أَبُو دَاوُدَ رَوَاهُ عَبْدُ الْمَلِكِ بْنُ أَبِي سُلَيْمَانَ وَهَمَّامٌ عَنْ عَطَاءٍ عَنِ ابْنِ عَبَّاسٍ مَوْقُوفًا .