Should you continue with the 2 rakaat prayer if it's already time for congregation?

[emem.masorong]

“When one of you enters the mosque, let him not sit down until he has prayed two rak‘ahs.”

What if it's already time for the congregational prayer wherein all are praying at the same time? Should you still continue with your 2 rak'ah prayer as said above or join the others?

[azc]

.........''If one enters the mosque and there is not enough time to perform it before the obligatory prayer commences, or if one needs to perform the confirmed sunna of Zuhr, or if the congregational prayer has started, then one can simply intend it along with the prayer one is going to perform.''.........

http://islamqa.org/hanafi/qibla-hanafi/35343

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