Instigated by Satyabhama, Krsna took the parijata tree.

The details of going to Indra’s abode are given in Viṣṇu Purāṇa: garuḍo vāruṇaṁ chatraṁ tathaiva maṇiparvatam / sabhāryaṁ ca hṛṣīkeśaṁ līlayaiva vahan yayau // tataḥ śaṅkham upādhmāsīt svarga-dvāra-gato hariḥ / upatasthus tathā devāḥ sārghya-pātrā janarjanam // sa devair arcitaḥ kṛṣṇo deva-mātur niveśanam / sitābhra-śikharākāraṁ praviśya dadṛśe 'ditim // sa tāṁ praṇamya śakreṇa saha te kuṇḍalottame / dadau naraka-nāśaṁ ca śaśaṁsāsyai janārdanaḥ // Garuḍa very easily carried the umbrella of Varuṇa, the jeweled mountain, Kṛṣṇa and his wife and went to Svarga. The Lord blew his conch when he arrived at the gate of Svarga. The devatās arrived and worshipped Kṛṣṇa with arghya. After being worshipped, Kṛṣṇa entered Aditi’ṣ abode, which resembled a shining peak, and saw her. He offered her respects along with Indra, and presented her with her excellent earrings. He described to Indra the killing of Naraka. Later it is said: adityā tu kṛtānujño devarājo janārdanam / yathāvatpūjayāmāsa bahumāna-puraḥsaram // Indra, in gratitude, along with Aditi, worshipped Kṛṣṇa sufficiently, showing great respect. Hari-vaṁśa says: so 'rcito deva-rājena ratnaiś ca pratipūjitaḥ / satyabhāmā ca paulomyā yathāvad abhinanditā // He was worshipped by Indra and presented with jewels. Satyabhāmā was welcomed by Indra’s wife properly. Viṣṇu Purāṇa describes how his wife requested the pārijāta. dadarśa ca sugandhāḍhyaṁ mañjarī-puñja-dhāriṇam / śaityāhlādakaraṁ tāmra-bāla-pallava-śobhitam // mathyamāne 'mṛte jātaṁ jāta-rūpamaya-tvacam / pārijātaṁ jagannāthaḥ keśavaḥ keśi-sūdanaḥ // taṁ dṛṣṭvā prāha govindaṁ satyabhāmā dvijottama / kasmān na dvārakām eṣa nīyate kṛṣṇa pādapaḥ // yadi cet tvad vacaḥ satyaṁ satyātyarthaṁ priyeti me / mad geha-niṣkuṭārthāya tad ayaṁ nīyatāṁ taruḥ // // na me jāṁbavatī tādṛg abhīṣṭā na ca rukmiṇī / satye yathā tvam ity uktaṁ tvayā kṛṣṇāsakṛt-priyam // satyaṁ tad yadi govinda nopacāra-kṛtaṁ vacaḥ / tad astu pārijāto 'yaṁ mama geha-vibhūṣaṇam // bibhratī pārijātasya keśa-pakṣeṇa mañjarīm / sapatnīnām ahaṁ madhye śobheyam iti kāmaye // Kṛṣṇa saw that pārijāta, filled with fragrance, laden with masses of buds, producing coolness and joy, decorated with pink, young shoots and golden bark. It has been produced from the churning of the Milk Ocean. On seeing that tree, Satyabhāmā spoke to Kṛṣṇa, O best of the brāhmaṇas! “O Kṛṣṇa! Why can this tree not be brought to Dvārakā? If your words are true and I am really dear to you, please bring that tree for the garden in my house. O Kṛṣṇa! You have many times said that you do not desire Jāmbavatī or Rukmiṇī as much as you desire me. O Govinda! If you have spoken true and your words are not just a decoration, then the pārijāta should decorate my house. Carrying a bud of the pārijāta in my hair, among all the co-wives I will be glorious. This is what I desire.” Completely conquering (ni-jitya) Indra, he brought the tree to Dvārakā as his reward (upa--anayat) for helping Indra.