If good befalls you, it distresses them; but if disaster strikes you, (9:50)

﴿إِن تُصِبْكَ حَسَنَةٌ تَسُؤْهُمْ ۖ وَإِن تُصِبْكَ مُصِيبَةٌ يَقُولُوا قَدْ أَخَذْنَا أَمْرَنَا مِن قَبْلُ وَيَتَوَلَّوا وَّهُمْ فَرِحُونَ﴾
[ التوبة: 50]

9:50 If good befalls you, it distresses them; but if disaster strikes you, they say, "We took our matter [in hand] before," and turn away while they are rejoicing.

If the Messenger of Allah receives a blessing from Allah that pleases him, such as victory or some gains, they dislike this, and it grieves them.
If a misfortune befalls him in the form of some hardship or loss in battle, these hypocrites say that they had taken precautions for themselves, making the right decision when they did not go out to fight as the believers did, which led to them being killed or captured.
They, then, turn away to their people, rejoicing in their own safety.

If good befalls you (O Muhammad SAW), it grieves them, but if a calamity overtakes you, they say: "We took our precaution beforehand," and they turn away rejoicing.

phonetic Transliteration

In tusibka hasanatun tasuhum wain tusibka museebatun yaqooloo qad akhathna amrana min qablu wayatawallaw wahum farihoona

Abdullah Yusuf Ali - Translation

If good befalls thee, it grieves them; but if a misfortune befalls thee, they say, "We took indeed our precautions beforehand," and they turn away rejoicing.

Safi-ur-Rahman al-Mubarakpuri

If good befalls you, it grieves them, but if a calamity overtakes you, they say: "We took our precaution beforehand," and they turn away rejoicing.

Page 195 English transliteration