Arabic hadith text
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ سَأَلَ ابْنَ شِهَابٍ عَنِ الرَّجُلِ، يُدْرِكُ بَعْضَ التَّكْبِيرِ عَلَى الْجَنَازَةِ وَيَفُوتُهُ بَعْضُهُ فَقَالَ يَقْضِي مَا فَاتَهُ مِنْ ذَلِكَ ‏.‏
Translation

Yahya related to me that Malik asked Ibn Shihab about a man whocaught some of the takbirs said over the corpse and missed the rest,and Ibn Shihab said, "He completes what he has missed."