Jamiʿ al-Tirmidhī
جَامِعُ التِّرْمِذِي
One of the nine major collections of the Sunnah also known as Sunan al-Tirmidhī. Full name: al-Jāmiʿ al-Mukhtaṣar min al-Sunan ʿan Rasūlullāh ﷺ wa-Maʿrifat al-Ṣaḥīḥ wa-al-Maʿlūl wa-Mā ʿalayhā al-ʿAmal (الجامع المختصر من السنن عن رسول الله ﷺ ومعرفة الصحيح والمعلول وما عليها العمل) (The Comprehensive Summary of the Sunnah from the Messenger of Allah ﷺ and the Knowledge of Authentic and Defective that are Acted Upon). Sources: sunnah.com for the Arabic text and English translation. The English translation has been improved by myself and other contributors.
Random ḥadīth in Tirmidhī
"When Ali returned to the Messenger of Allah from Yemen he said: 'For what did you intended the Talbiyah?' He replied: 'I intended the Talbiyah for what the Messenger of Allah announced it.' So he (pbuh) said: 'If I did not have the Hadi with me then I would exit Ihram.'"
أَنَّ عَلِيًّا قَدِمَ عَلَى رَسُولِ اللَّهِ ﷺ مِنَ الْيَمَنِ فَقَالَ بِمَ أَهْلَلْتَ قَالَ أَهْلَلْتُ بِمَا أَهَلَّ بِهِ رَسُولُ اللَّهِ ﷺ قَالَ لَوْلاَ أَنَّ مَعِي هَدْيًا لأَحْلَلْتُ