Some of our companions have drawn evidence on this matter from the general statement of the Prophet (peace and blessings be upon him): "Pray whatever part of the prayer you catch, then complete what you have missed."
It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When you come to the prayer, do not come running; come walking with calm and tranquillity. Pray whatever you catch, and complete whatever you have missed."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3192