The Quran

لا تَجعَلوا دُعاءَ الرَّسولِ بَينَكُم كَدُعاءِ بَعضِكُم بَعضًا ۚ قَد يَعلَمُ اللَّهُ الَّذينَ يَتَسَلَّلونَ مِنكُم لِواذًا ۚ فَليَحذَرِ الَّذينَ يُخالِفونَ عَن أَمرِهِ أَن تُصيبَهُم فِتنَةٌ أَو يُصيبَهُم عَذابٌ أَليمٌ

Muhammad Asad

DO NOT regard the Apostle's summons to you¹ [in the same light] as a summons of one of you to another: God is indeed aware of those of you who would withdraw surreptitiously: so let those who would go against His bidding beware, lest a [bitter] trial befall them [in this world] or grievous suffering befall them [in the life to come].

I.e., his summons to God's message in general, spoken of in verses 46-54 above, as well as to a particular course of communal action, referred to in verse 62. Alternatively, "the Apostle's summons" may, in this context, be synonymous with the Qur'an itself.