Amongst the propriety of Fridays is to arrive at the mosque as early as possible for the Friday service. Upon entering the mosque, one should perform the recommended prayer of Greeting the Mosque [tahiyyat al-masjid].
Then, if there is adequate time before meridian [zawal], one should aim to perform the following prayer mentioned by Sayyiduna al-Shaikh Muhyuddin Abdul Qadir al-Jilani in his al-Ghunya li-Talibi Tariq al-Haqq:
As soon as the worshipper enters the congregational mosque [jami’], he is recommended—provided there is time to spare—to perform four cycles of [voluntary] ritual prayer [raka’at], in the course of which he should recite “Qul huwa Llahu Ahad!” (i.e. Surah al-Ikhlas) two hundred times (that is to say, fifty times in each cycle).
This practice is recommended on good authority, because the Prophet ﷺ is reported as having said:
‘If someone does this, he will not die without having seen his place of abode in the Garden of Paradise, or having been absolved [of all sin].
This saying was reported by Ibn ‘Umar (may Allah be well pleased with him and his father).
—Al-Jilani, A. (1997). The Ritual Prayer of the Friday Congregation. In: Holland, M (Trans.) Al-Ghunya li-Talibi Tariq al-Haqq (Volume Four). Florida: Al-Baz Publishing, Inc.
Imam Abu Hamid al-Ghazzali, in Book IV of his Ihya Ulum al-Din, also mentions this prayer as one of the “Good Deeds on Friday”:
To bless the Prophet ﷺ when entering the mosque, and not to sit until having prayed four rak’ahs, reciting Surah al-Ikhlas fifty times in each rak’ah. The Prophet ﷺ said that whoever prays such will not die until he is shown his place in Paradise.
—Al-Ghazali, A. (2015). The Excellence of the Friday Prayer. In: Karim, F (Trans.) Ihya Ulum al-Din (Volume I). Selangor: Islamic Book Trust.
Regarding Virtuous Deeds
Imam al-Nawawi states in his al-Adhkar:
And he whom anything from the virtues of deeds reaches him should perform them, even though only once (in his lifetime) and even if the narration is weak.
In a narration recorded by Al-Hafiz Abu Musa Muhammad b. Bakr b. ‘Isa al-Madani in his book al-Waza’if, on the authority of Jabir b. Abdullah:
Whoever, a deed of virtue reaches him from Allah and he acts upon it out of faith and hope in reward, Allah will bestow that upon him, even though it was not like what he thought!
And Allah knows best and He is the Guide!