«إذا أتيت الصلاة فأتها بوقار وسكينة فصل ما أدركت واقض ما فاتك»
The Prophet (peace and blessings be upon him) said:
"When you come to the prayer, come with dignity and tranquillity; then pray whatever (of the prayer with the imam) you catch, and make up (afterwards) whatever you have missed."
Hadith Referenceصحیح الجامع الصغیر / حرف الألف / 272