The Prophet sallahu alayhi wa salam said:

عَنْ سَهْلِ بْنِ سَعْدٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ “‏ لاَ يَزَالُ النَّاسُ بِخَيْرٍ مَا عَجَّلُوا الْفِطْرَ

“The people will remain on the right path as long as they hasten the breaking of the fast.”

[Saheeh al-Bukhari no. 1957]

The Prophet sallahu alayhi wa salam used to hasten to break the fast without waiting for the Muadhin:

Proof:

كان إذا كان صائما أمر رجلا فأوفى على نشز ، فإذا قال : قد غابت الشمس أفطر

“If he was fasting sallahu alayhi wa salam, he would order a man to ascend a high place. If he [the mann] said: the sun has set, he sallahu alayhi wa salam used to break his fast“

[Silsilatus-Saheeha (5/118)]

Shaikh al-Albani rahimahullah wrote commenting on the above Hadith:

“I say: in this Hadith is his concern sallahu alayhi wa salam to hasten…