I heard the Messenger of Allah (ﷺ) saying: When the Iqama has been pronounced for prayer, do not go running to it, but go walking in tranquillity and pray what you are in time for, and complete what you have missed.
Sahih Muslim Book 5, Hadith 194
← Previous Hadith While we said prayer with the Messenger of Allah (ﷺ), one among the people said: Allah is truly Great, praise be to Allah in abundance. Glory be to Allah in the morning and the evening. The Messenger of Allah (may peace be upon, him) said: Who uttered such and such a word? A person among the people said: It is I, Messenger of Allah (who have recited these words). He (the Holy Prophet) said: It (its utterance) surprised me, for the doors of heaven were opened for It. Ibn 'Umar said: I have not abandoned them (these words) since I heard the Messenger of Allah (ﷺ) saying this.

Sahih Muslim Book 5, Hadith 193 Next Hadith → When the words of Iqama are pronounced, do not come to (prayer) running, but go with tranquillity, and pray what you are in time for, and complete (what you have missed) for when one of you is preparing for prayer he is in fact engaged in prayer.

Sahih Muslim Book 5, Hadith 195