´Yahya bin Abi Ishaq Al-Hadrami narrated :` that Anas bin Malik said: "We went with the Messenger of Allah from Al-Madinah to Makkah, and he prayed two Rak'ah." He said: "I said to Anas: 'How long did Messenger of Allah stay in Makkah?' He said: 'Ten (days).'"
´Ibn Abbas narrated:` "The Messenger of Allah traveled on a journey and he prayed two Rak'ah for nineteen days." Ibn Abbas said: "So when we would stay somewhere for nineteen (days) we would pray two Rak'ah , and if we stayed longer than that we would complete the Salat."
Hadith Referenceسنن ترمذي / أبواب السفر / 549
Hadith Gradingالألبانی:صحيح، ابن ماجة (1075)
Hadith Takhrij«صحیح البخاری/تقصیر الصلاة 1 (1080) ، والمغازی 52 (4298) ، سنن ابی داود/ الصلاة 279 (1230) ، (بلفظ ’’ سبعة عشر ‘‘ وشاذ) ، سنن ابن ماجہ/الإقامة 76 (1075) ، ( تحفة الأشراف : 6134) (صحیح)»