«صل الصلاة لوقتها فإن أدركت معهم فصل ولا تقل إني قد صليت فلا أصلي»
The Prophet (peace and blessings be upon him) said:
"Pray the prayer at its proper time. Then, if you find them (praying), pray with them (as well), and do not say, 'I have already prayed, so I will not pray (again).'"
Hadith Referenceصحیح الجامع الصغیر / حرف الصاد / 3771