The Cattle
ذَٰلِكَ هُدَى ٱللَّهِ يَهْدِى بِهِۦ مَن يَشَآءُ مِنْ عِبَادِهِۦ ۚ وَلَوْ أَشْرَكُوا۟ لَحَبِطَ عَنْهُم مَّا كَانُوا۟ يَعْمَلُونَ
That is the guidance of Allah by which He guides whomever He wills of His servants. But if they had associated others with Allah, then worthless for them would be whatever they were doing.
Nearby ayahs help place verse 6:88 in sequence and meaning.
وَإِسْمَـٰعِيلَ وَٱلْيَسَعَ وَيُونُسَ وَلُوطًا ۚ وَكُلًّا فَضَّلْنَا عَلَى ٱلْعَـٰلَمِينَ
And Ishmael and Elisha and Jonah and Lot - and all [of them] We preferred over the worlds.
وَمِنْ ءَابَآئِهِمْ وَذُرِّيَّـٰتِهِمْ وَإِخْوَٰنِهِمْ ۖ وَٱجْتَبَيْنَـٰهُمْ وَهَدَيْنَـٰهُمْ إِلَىٰ صِرَٰطٍ مُّسْتَقِيمٍ
And [some] among their fathers and their descendants and their brothers - and We chose them and We guided them to a straight path.
أُو۟لَـٰٓئِكَ ٱلَّذِينَ ءَاتَيْنَـٰهُمُ ٱلْكِتَـٰبَ وَٱلْحُكْمَ وَٱلنُّبُوَّةَ ۚ فَإِن يَكْفُرْ بِهَا هَـٰٓؤُلَآءِ فَقَدْ وَكَّلْنَا بِهَا قَوْمًا لَّيْسُوا۟ بِهَا بِكَـٰفِرِينَ
Those are the ones to whom We gave the Scripture and authority and prophethood. But if the disbelievers deny it, then We have entrusted it to a people who are not therein disbelievers.
أُو۟لَـٰٓئِكَ ٱلَّذِينَ هَدَى ٱللَّهُ ۖ فَبِهُدَىٰهُمُ ٱقْتَدِهْ ۗ قُل لَّآ أَسْـَٔلُكُمْ عَلَيْهِ أَجْرًا ۖ إِنْ هُوَ إِلَّا ذِكْرَىٰ لِلْعَـٰلَمِينَ
Those are the ones whom Allah has guided, so from their guidance take an example. Say, "I ask of you for this message no payment. It is not but a reminder for the worlds."